Today's Image of the Day from NASA Earth Observatory features a satellite view of retreating glaciers in Alaska, where meltwater is rapidly expanding glacial lakes. 



“In parts of Alaska, water is replacing ice. As glaciers thin and <a href="https://www.earth.com/news/satellite-images-reveal-hidden-retreat-of-arctic-glaciers/" target="_blank" rel="noreferrer noopener">retreat</a>, meltwater collects at their fronts, forming proglacial lakes. According to an analysis by Mauri Pelto, a glaciologist at Nichols College, three such lakes in the southeastern part of the state have grown rapidly in recent decades,” said <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA</a>.



<h2 class="wp-block-heading" id="h-retreating-glaciers-in-alaska">Retreating glaciers in Alaska</h2>



“A trio of glaciers - Yakutat, Alsek, and Grand Plateau - descend from inland mountains and flow onto the coastal plain southeast of Yakutat borough, ending at Harlequin Lake, Alsek Lake, and Grand Plateau Lake,” noted NASA.&nbsp;



The retreat of the glaciers, as well as the growth of the lakes, are visible in the image. When compared to an <a href="https://eoimages.gsfc.nasa.gov/images/imagerecords/153000/153638/fastestlake_tm5_19840705_lrg.jpg" target="_blank" rel="noreferrer noopener">image</a> captured by Landsat 5 in the summer of 1984, the changes are even more evident.



NASA elaborated on the extent of the glacier retreat from 1984 to 2024. “During this period, Yakutat Glacier’s main arm retreated 4.3 miles, while Alsek Glacier’s northern and southern arms retreated 3.3 miles and 3.4 miles, respectively. Grand Plateau Glacier’s northern arm lost the most, retreating 4.8 miles.”



<h2 class="wp-block-heading" id="h-glacial-lakes-doubled-in-size-nbsp">Glacial lakes doubled in size&nbsp;</h2>



“Collectively, the three lakes more than doubled in size over 40 years. In 1984, they covered about 50 square miles. By 2024, they spanned 90 square miles. That’s an area larger than Seneca Lake (67 square miles) - one of the Finger Lakes in New York, which also have a glacial origin,” said NASA.



Pelto noted that the lakes forming in this region are immense - starting at the mountains and spreading toward the coast - making this a new lake district that is unique in our nation.



“Millions of other lakes, named and unnamed, dot the state. But this system has grown fast, so much so that Pelto thinks it might represent the fastest lake growth in the United States this century,” said NASA.



<h2 class="wp-block-heading" id="h-understanding-glacier-retreat-nbsp">Understanding glacier retreat&nbsp;</h2>



Glacier retreat is a significant phenomenon driven primarily by global warming the results from rising greenhouse gas <a href="https://www.earth.com/news/global-carbon-dioxide-emissions-hit-a-record-high-in-2023/" target="_blank" rel="noreferrer noopener">emissions</a>.&nbsp;



As temperatures rise, glaciers lose more ice during the summer melt than they can regain in winter snowfall, causing them to shrink over time. This process has profound implications for ecosystems, water resources, and global sea levels.



<h3 class="wp-block-heading" id="h-glacial-lakes">Glacial lakes</h3>



When glaciers retreat, they often leave behind depressions in the landscape that can fill with meltwater, forming glacial lakes. These lakes are typically bounded by natural dams made of rock, ice, or moraine - accumulations of debris left behind by the glacier's movement.&nbsp;



Over the past century, the number and size of glacial lakes worldwide have increased significantly due to the accelerating pace of <a href="https://www.earth.com/news/tropical-glaciers-offer-a-glimpse-of-our-harsh-climate-reality/" target="_blank" rel="noreferrer noopener">glacier</a> retreat. This trend is especially evident in high-altitude regions like the Himalayas, the Andes, and the Alps, as well as in polar areas such as Alaska and Greenland.



<h3 class="wp-block-heading" id="h-positive-and-negative-impacts-nbsp">Positive and negative impacts&nbsp;</h3>



Glacial lakes can have both positive and negative impacts. They provide critical water sources for downstream communities, support biodiversity, and sometimes offer opportunities for hydropower development or tourism.&nbsp;



However, they also pose serious risks. The dams holding back these lakes can fail suddenly, causing glacial lake outburst floods (GLOFs). These catastrophic events can devastate downstream areas, destroying infrastructure, agricultural lands, and habitats while endangering human lives.



<h3 class="wp-block-heading" id="h-monitoring-changes">Monitoring changes</h3>



Understanding glacier retreat and glacial lake formation requires a multidisciplinary approach, combining climate science, hydrology, and geology.&nbsp;



Monitoring these changes is essential to mitigate associated risks and adapt to the evolving landscape shaped by a <a href="https://search.app?link=https%3A%2F%2Fwww.earth.com%2Fnews%2Fperu-has-lost-over-half-of-its-glaciers-in-six-decades%2F&amp;utm_campaign=aga&amp;utm_source=agsadl2%2Csh%2Fx%2Fgs%2Fm2%2F4" target="_blank" rel="noreferrer noopener">warming planet</a>.



<h2 class="wp-block-heading" id="h-glacier-retreat-worldwide">Glacier retreat worldwide</h2>



Studies and satellite observations show that most glaciers in almost all regions of the world are shrinking.&nbsp;



Melting glaciers contribute significantly to global <a href="https://www.earth.com/news/emergency-meeting-reveals-the-alarming-extent-of-antarcticas-ice-loss/" target="_blank" rel="noreferrer noopener">sea level rise</a>, which threatens coastal communities and ecosystems.



The retreat of glaciers is considered one of the clearest indicators of climate change.&nbsp;Some glaciers are retreating at unprecedented rates, indicating accelerating climate impacts.



The image was captured on August 4, 2024 by the Landsat 8 satellite.



Image Credit: NASA Earth Observatory



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Retreating glaciers and expanding meltwater lakes in Alaska

Today's Image of the Day from NASA Earth Observatory features...

Today's Image of the Day from NASA Earth Observatory features the Costa Atlántica Reserve stretching along the Atlantic coast in Argentina.



“At the far southern reaches of South America, a stretch of tidal flats, shoals, and beaches serves as a refuge for migratory shorebirds and copious aquatic life,” said <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA</a>.



“The Costa Atlántica Reserve in Argentina extends for 220 kilometers (140 miles) along the eastern shore of Tierra del Fuego. The area was designated a Ramsar site in 1995 and a provincial nature reserve in 1998." 



According to NASA, the reserve is the southernmost site both on the Ramsar list and in the Western Hemisphere Shorebird Reserve Network.



<h2 class="wp-block-heading" id="h-significance-of-the-costa-atlantica-reserve">Significance of the Costa Atlántica Reserve</h2>



The Costa Atlántica Reserve is an important conservation site that signifies Argentina's commitment to preserving its rich <a href="https://www.earth.com/news/human-induced-changes-in-ocean-salinity-threaten-biodiversity-and-marine-ecosystems/" target="_blank" rel="noreferrer noopener">coastal biodiversity</a>.&nbsp;



This vast expanse of protected area serves as a sanctuary for many species, ranging from migratory birds to marine mammals and diverse plant life.



“Tidal habitats along the coast support some 135 species of birds, while crustaceans, mollusks, fish, and cetaceans feed in the productive coastal waters,” said NASA.&nbsp;



“The topography inland of Costa Atlántica, stretching into Chile to the west, is blanketed in shrubs and grassland vegetation adapted to dry conditions - part of a semiarid ecosystem known as the Fuegian steppe.”



<h2 class="wp-block-heading" id="h-maintaining-ecological-balance-nbsp">Maintaining ecological balance&nbsp;</h2>



Established to safeguard the delicate ecosystems of dunes, estuaries, and <a href="https://www.earth.com/news/coastal-lagoons-have-high-loads-of-microplastics/" target="_blank" rel="noreferrer noopener">coastal lagoons</a>, the reserve plays a crucial role in maintaining ecological balance.&nbsp;



The Costa Atlántica Reserve provides critical habitats for numerous threatened species, including the <a href="https://www.earth.com/news/southern-right-whales-have-shifted-their-foraging-grounds/">Southern Right Whale</a>, which finds refuge in these waters during its breeding season. 



The reserve’s sheltered bays and nutrient-rich waters create an ideal environment for mothers to nurse their calves before embarking on long migrations. 



In addition to whales, the reserve supports populations of sea lions and Magellanic penguins. Its protection is vital for the long-term survival of these species in the face of climate change and human activity.



<h2 class="wp-block-heading" id="h-costa-atlantica-reserve-a-living-laboratory-nbsp">Costa Atlántica Reserve: A living laboratory&nbsp;</h2>



The Costa Atlántica Reserve is not only a refuge for wildlife but also a living laboratory for scientific research. 



Conservationists and researchers work within its bounds to monitor ecosystems, study species behaviors, and develop strategies for sustainable management. 



This ongoing research is pivotal in understanding the impacts of climate change on <a href="https://www.earth.com/news/coastal-river-deltas-face-major-threats-beyond-climate-change/" target="_blank" rel="noreferrer noopener">coastal environments</a> and in devising measures to mitigate these effects.



Furthermore, the reserve illustrates the importance of community involvement in conservation efforts. Local communities are engaged in sustainable tourism and educational programs.&nbsp;



Through <a href="https://www.earth.com/news/how-bird-photographers-improve-nesting-success/" target="_blank" rel="noreferrer noopener">eco-tourism</a> initiatives, visitors can experience the natural beauty of the reserve while contributing to its preservation.



<h2 class="wp-block-heading" id="h-tierra-del-fuego-archipelago">Tierra del Fuego archipelago</h2>



According to NASA, the broader landscape of the Tierra del Fuego archipelago was shaped by glaciers.&nbsp;



“Ice advanced over the mountains and lowlands during cold climatic periods between the mid-Pleistocene, about 1 million years ago, and the Last Glacial Maximum, about 20,000 years ago. San Sebastián Bay formed in a tectonic depression that was deepened by glacial erosion," noted NASA.&nbsp;



“Further evidence of glaciation, including hummocky moraines and fields of glacial erratics, appears around the bay, though it is too small to be visible in this image.”



“Partially enclosed by a long, sandy peninsula, San Sebastián Bay attracts copious migratory birds, some of which shuttle seasonally between the Northern and Southern Hemispheres.”



“Large populations of the Hudsonian godwit, white-rumped sandpiper, and other long-distance flyers congregate in the vast intertidal zones. This part of the reserve, however, is vulnerable to the impact of oil and gas extraction from onshore and offshore deposits.”



The image was captured on February 20, 2024 by the <a href="https://landsat.gsfc.nasa.gov/satellites/landsat-9/landsat-9-instruments/oli-2-design/" target="_blank" rel="noreferrer noopener">OLI-2</a> (Operational Land Imager-2) on Landsat 9.



Image Credit: NASA Earth Observatory&nbsp;



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Costa Atlántica Reserve in Argentina

Today's Image of the Day from NASA Earth Observatory features an explosive eruption of Mount Etna, the most active volcano in Europe. The photo was captured on February 13 by the OLI (Operational Land Imager) on the Landsat 8 satellite.



<a href="https://earthobservatory.nasa.gov/images/153962/river-of-fire-on-mount-etna" target="_blank" rel="noreferrer noopener">NASA</a> noted that the natural-color scene is overlaid with an infrared signal to distinguish the lava’s heat signature on the mountain's snowy slopes.



<h2 class="wp-block-heading" id="h-signs-of-unrest">Signs of unrest</h2>



“On February 8, 2025, Italy’s National Institute of Geophysics and Volcanology (INGV) reported that Mount Etna had begun exhibiting ‘signs of unrest above its background level,’”&nbsp;said NASA.



“That’s unsurprising for the frequently unruly Sicilian peak, one of the most active stratovolcanoes in the world. But the fiery explosions, disruptive ash clouds, and long lava flows that ensued stood out as being unusually spectacular to many Etna watchers.”



<h2 class="wp-block-heading" id="h-intensifying-eruptions-on-mount-etna">Intensifying eruptions on Mount Etna </h2>



The activity intensified on February 10th, with lava flowing from the Bocca Nuova crater at an altitude of approximately 3,000 meters above sea level.&nbsp;



According to news reports, the eruption created a striking visual as molten lava traversed the snow-covered slopes, producing rivers of lava up to 3 kilometers long and emitting ash plumes visible from several kilometers away.



The <a href="https://www.earth.com/news/new-research-enhances-predictions-on-volcanic-eruptions/" target="_blank" rel="noreferrer noopener">volcanic activity</a> attracted thousands of tourists eager to witness the spectacle. However, the influx of visitors led to traffic congestion, obstructing emergency services and prompting warnings from local authorities about the potential dangers of approaching the active volcano.



<h2 class="wp-block-heading" id="h-impacts-of-mount-etna-eruptions">Impacts of Mount Etna eruptions </h2>



Despite the dramatic displays, there were no reports of injuries or significant property damage, though experts continue to closely monitor the situation.



Satellite imagery has provided detailed views of the active lava flow cutting through the snow-covered slopes, with ash plumes dispersing from the summit.



“The presence of ash prompted authorities to raise the aviation color code to orange on February 13. On other days during this eruption, it was elevated to red, the highest level of concern. The airport in nearby Catania diverted flights amid hazardous conditions, according to news reports,” said NASA.



“Since Etna stirred to life this time around, crowds of hikers and even some skiers flocked to its slopes to witness the fiery displays and lava flows melting through snow. The eruption was ongoing as of February 18, with weak ash emissions and decreasing explosive activity.”



<h2 class="wp-block-heading" id="h-a-volcano-with-a-long-history">A volcano with a long history </h2>



Mount Etna has a history stretching back hundreds of thousands of years. Located on the east coast of Sicily, near Catania, the volcano has shaped the landscape and influenced human civilization.



The volcano’s activity dates back at least 500,000 years, with its earliest eruptions occurring beneath the sea before the landmass emerged. Over time, lava flows, <a href="https://www.earth.com/news/yellowstone-supervolcano-eruption-study-sparks-new-debate-on-where-and-when-it-will-erupt/" target="_blank" rel="noreferrer noopener">eruptions</a>, and collapses have sculpted the towering stratovolcano seen today.



Ancient civilizations were well aware of Etna’s power. Greek mythology depicted it as the forge of Hephaestus, the god of fire, while the poet Pindar described its violent eruptions. The philosopher Empedocles was even said to have perished in its fiery depths.&nbsp;



Etna’s eruptions were documented throughout Roman history, including a major event in 122 BC that devastated Catania.



During the Middle Ages and Renaissance periods, Etna continued its eruptions, frequently altering its landscape and affecting nearby settlements.&nbsp;



<h2 class="wp-block-heading" id="h-monitoring-the-activity-of-mount-etna">Monitoring the activity of Mount Etna </h2>



One of the most devastating eruptions occurred in 1669, when lava flows destroyed several villages and overwhelmed parts of Catania’s city walls. Despite these dangers, people continued to live and farm on Etna’s fertile slopes, taking advantage of its rich volcanic soil.



Scientific study of Mount Etna began in the 19th and 20th centuries, as researchers sought to understand its behavior and mitigate its risks. Advances in monitoring technology have since helped track its activity, though eruptions remain unpredictable.&nbsp;



In modern times, Etna continues to be one of the most closely watched <a href="https://www.earth.com/news/axial-seamount-large-underwater-volcano-off-us-coast-will-likely-erupt-in-2025/" target="_blank" rel="noreferrer noopener">volcanoes</a> in the world, with frequent eruptions, ash clouds, and lava flows affecting air travel and local communities.



Mount Etna was designated a UNESCO World Heritage Site in 2013 due to its geological significance and cultural history.&nbsp;



Today, the <a href="https://www.earth.com/news/earths-next-big-volcano-eruption-will-cause-global-chaos-climate-impact/" target="_blank" rel="noreferrer noopener">volcano</a> attracts tourists, scientists, and locals alike, serving as both a reminder of nature’s power and a source of economic and scientific interest.



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Fiery eruption of Mount Etna captured from space

Today's Image of the Day from the European Space Agency features NGC 1333, a reflection nebula located in the Perseus molecular cloud about 960 light-years away from Earth. The photo is a mosaic of images captured by the James Webb Space Telescope.



<h2 class="wp-block-heading" id="h-the-power-of-webb-nbsp-nbsp">The power of Webb&nbsp;&nbsp;</h2>



“Webb’s superb sensitivity allows astronomers to investigate young objects with extremely low masses. Some of the faintest ‘stars’ in the picture are in fact newly born free-floating brown dwarfs with masses comparable to those of giant planets,” noted <a href="https://www.esa.int/" target="_blank" rel="noreferrer noopener">ESA</a>.



The same cluster was featured as the 33rd anniversary image of the Hubble Space Telescope in April 2023.&nbsp;



According to ESA, Hubble’s image just scratched the surface of this region, because clouds of dust obscure much of the star formation process. 



"Observing with larger aperture and in the infrared part of the spectrum, Webb is capable of peering through the dusty veil to reveal newborn stars, brown dwarfs and planetary mass objects."



<h2 class="wp-block-heading" id="h-webb-s-view-of-ngc-1333">Webb’s view of NGC 1333</h2>



ESA noted that the center of the image presents a deep peek into the heart of the NGC 1333 cloud. 



“Across the image we see large patches of orange, which represent gas glowing in the infrared. These so-called Herbig-Haro objects form when ionized material ejected from young stars collides with the surrounding cloud. They are hallmarks of a very active site of star formation."



The disks of gas and dust that surround the <a href="https://www.earth.com/news/newly-discovered-stars-milky-way-are-old-as-universe/" target="_blank" rel="noreferrer noopener">stars</a> in this image may eventually produce planetary systems.&nbsp;



<h2 class="wp-block-heading" id="h-formation-of-the-sun">Formation of the Sun</h2>



“Similar to the young stars in this mosaic, our own Sun and planets formed inside a dusty molecular cloud, 4.6 billion years ago. Our Sun did not form in isolation but as part of a cluster, which was perhaps even more massive than NGC 1333,” explained ESA.



Over time, the stars in the Sun's birth cluster would have drifted apart due to gravitational interactions and the dispersion of gas in the region.



Astronomers have been studying certain clues, such as isotopic signatures in meteorites, that hint the Sun may have formed near massive stars. These stars likely produced supernovae, which could have influenced the early <a href="https://www.earth.com/news/mysterious-objects-spotted-in-the-outer-solar-system-beyond-pluto/" target="_blank" rel="noreferrer noopener">solar system</a> by injecting heavy elements like iron-60.



<h2 class="wp-block-heading" id="h-star-formation-in-ngc-1333">Star formation in NGC 1333</h2>



NGC 1333 is a vibrant example of a stellar nursery, where active <a href="https://www.earth.com/news/baby-stars-release-sneezes-of-gas-and-dust-as-they-develop/" target="_blank" rel="noreferrer noopener">star formation</a> is ongoing. It is known for its chaotic appearance, shaped by the interactions between newborn stars and the surrounding material.



Within NGC 1333, astronomers have observed a high level of turbulence, which makes the region dynamic and complex. 



These disturbances are caused by the outflows of young stars as they eject material into their surroundings, creating shock waves and influencing further star formation.&nbsp;



These outflows are often seen as jets, which are visible in multiple wavelengths of light, especially infrared, as the surrounding dust absorbs visible light.



<h2 class="wp-block-heading" id="h-significance-of-ngc-1333">Significance of NGC 1333</h2>



NGC 1333 is also an area of interest for studying the early stages of star and <a href="https://www.earth.com/news/planet-formation-new-insights-mechanics-physics/" target="_blank" rel="noreferrer noopener">planet formation</a>, as many of the stars within the cluster are in their infancy, still in the process of gathering material and developing protoplanetary disks.&nbsp;



In images, NGC 1333 is marked by bright patches of blue and red, representing reflection <a href="https://www.earth.com/news/six-rogue-worlds-discovered-inside-a-young-star-forming-nebula/" target="_blank" rel="noreferrer noopener">nebulae</a> and the ionized gas created by energetic young stars.&nbsp;



<h2 class="wp-block-heading" id="h-the-perseus-molecular-cloud-nbsp">The Perseus molecular cloud&nbsp;</h2>



The Perseus molecular cloud is a vast region of cold gas and dust located about 600 light-years away from Earth in the constellation <a href="https://www.earth.com/news/1500-billion-orphan-stars-discovered-in-the-perseus-galaxy-cluster/" target="_blank" rel="noreferrer noopener">Perseus</a>.&nbsp;



It is one of the most studied star-forming regions in our galaxy due to its relative proximity and the diversity of its young stellar objects. This cloud spans several hundred light-years and contains dense pockets of gas where new stars are actively forming.&nbsp;



These areas are often enshrouded in thick dust, which obscures them in visible light but allows astronomers to study them using infrared and radio wavelengths.



The Perseus molecular cloud is particularly interesting because of the chemistry taking place within it, including the formation of complex organic molecules that could be precursors to life.&nbsp;



Image Credit: ESA/Webb, NASA &amp; CSA



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Stellar nursery shines in the Perseus cloud

Today's Image of the Day from the European Space Agency...

Today's Image of the Day from NASA Earth Observatory features smoke streaming from Tasmania, where bushfires were ignited by dry lightning strikes earlier this month.&nbsp;



By February 5, more than a dozen fires were burning in the state's remote central and western regions.



<h2 class="wp-block-heading" id="h-bushfires-fueled-by-challenging-conditions">Bushfires fueled by challenging conditions </h2>



Communities such as Zeehan, Corinna, and Pieman Heads have been threatened, leading to evacuations and significant disruptions during the peak tourism season.



“In early February 2025, bushfires ignited in northwestern Tasmania, where they have continued to burn on the island for more than a week amid windy, warm, and dry conditions,” said <a href="https://earthobservatory.nasa.gov/images/153933/smoke-billows-from-bushfires-in-tasmania" target="_blank" rel="noreferrer noopener">NASA</a>.



“Smoke from the fires is visible in this image, acquired at about 4 p.m. local time on February 12, 2025, by the MODIS (Moderate Resolution Imaging Spectroradiometer) instrument on NASA’s Aqua satellite.”



<h2 class="wp-block-heading" id="h-impacts-of-the-tasmania-bushfires">Impacts of the Tasmania bushfires</h2>



The <a href="https://www.earth.com/news/wildfires-threaten-the-recovery-of-the-ozone-layer/" target="_blank" rel="noreferrer noopener">fires</a> have burned over 90,000 hectares, with a combined perimeter exceeding 1,200 kilometers.



The fires are expected to continue burning for several more weeks. Due to the region's remote and challenging terrain, authorities report that significant effort is still needed to gain control over the blazes.



“According to a heatwave warning from Australia’s Bureau of Meteorology (BoM), much of the state’s west coast saw severe heatwave conditions on several days during the week of February 10,” noted NASA.



“The region has also been exceptionally dry. For example, the past 12-month period has been the driest on record (since 1900) along the coastal areas near Sandy Cape.”



<h2 class="wp-block-heading" id="h-cultural-and-heritage-sites">Cultural and heritage sites</h2>



One significant area under threat is the takayna/Tarkine region in northwest Tasmania. This region is home to a grove of ancient Huon pine trees, including one estimated to be between 2,500 and 3,000 years old, making it the oldest known Huon pine.&nbsp;



The Yellowband Plain fire has burned perilously close to this grove, coming within meters of these irreplaceable trees.



Firefighters from Tasmania, interstate, and New Zealand are collaborating to control the blazes and help protect the Huon pine trees, as well as Indigenous heritage sites. 



Efforts to assess and mitigate the damage have been hampered by challenging weather conditions, including low cloud cover that restricts aerial surveys. Strong winds of up to 50 miles per hour have also complicated efforts to contain the bushfires.&nbsp;



<h2 class="wp-block-heading" id="h-climate-change-is-intensifying-bushfires-nbsp">Climate change is intensifying bushfires&nbsp;</h2>



Climate change and bushfires are deeply interconnected, with rising global temperatures intensifying the frequency and severity of wildfires in many regions.&nbsp;



Warmer temperatures lead to drier conditions, reducing moisture in vegetation and making it more susceptible to ignition. Prolonged droughts - which are becoming more common due to climate change - further dry out forests and grasslands, creating an abundance of flammable material.



Extreme heat waves increase the likelihood of fires starting and spreading rapidly. Higher temperatures also contribute to stronger winds, which can fan flames and carry embers over long distances, igniting new fires. 



Additionally, shifting <a href="https://www.earth.com/news/ultrafine-particles-in-wildfire-smoke-change-weather-patterns/" target="_blank" rel="noreferrer noopener">weather patterns</a> are altering fire seasons, making them longer and more unpredictable. Some areas that previously had clear fire seasons are now experiencing fires year-round.



<h2 class="wp-block-heading" id="h-shifting-behavior-of-wildfires-nbsp">Shifting behavior of wildfires&nbsp;</h2>



Climate change is also affecting the way bushfires behave. Many recent wildfires have been more intense, burning hotter and <a href="https://www.earth.com/news/fast-wildfires-are-gaining-even-more-speed/" target="_blank" rel="noreferrer noopener">spreading faster</a> than historical fires. This makes them harder to control and increases their impact on communities, ecosystems, and wildlife. 



The destruction of forests not only contributes to immediate carbon emissions but also reduces the planet’s ability to absorb carbon dioxide, creating a feedback loop that worsens climate change.



<h2 class="wp-block-heading" id="h-consequences-of-increased-fire-activity">Consequences of increased fire activity</h2>



Beyond the direct effects on landscapes and air quality, increased bushfire activity has severe consequences for <a href="https://www.earth.com/news/wildfire-smoke-is-an-underestimated-threat-to-public-health/" target="_blank" rel="noreferrer noopener">human health</a>, economies, and biodiversity. 



Smoke from large wildfires contains fine particles that can cause respiratory problems and other health issues, even for people far from the fire zones.&nbsp;



Wildlife struggles to escape or recover from habitat destruction, sometimes pushing species closer to extinction.



<h2 class="wp-block-heading" id="h-mitigating-the-risks">Mitigating the risks</h2>



Efforts to mitigate these risks include better fire management strategies, improved early <a href="https://www.earth.com/news/bushfires-are-detected-500-times-faster-with-ai-satellites/" target="_blank" rel="noreferrer noopener">warning systems</a>, and sustainable land-use practices. 



However, long-term solutions require addressing the root cause - reducing greenhouse gas emissions to slow down global warming.&nbsp;



Without significant action, climate change will continue to fuel more extreme and destructive bushfires, with devastating consequences for both nature and society.



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Tasmania bushfires: A growing crisis in an era of climate change

A recent study has unveiled how chemical elements and powerful winds shape the atmosphere of a planet far beyond our solar system.&nbsp;



By examining separate layers of the planet’s atmosphere in 3D, the researchers have revealed an intricate system of jet streams and temperature contrasts.



The discovery was made by astronomers at the <a href="https://www.eso.org/public/" target="_blank" rel="noreferrer noopener">European Southern Observatory</a> (ESO) in Chile and other institutions, who combined multiple telescope units to obtain a detailed view.&nbsp;



<h2 class="wp-block-heading" id="h-weather-conditions-on-a-distant-world">Weather conditions on a distant world</h2>



The research focused on WASP-121b (also called Tylos), a so-called “ultra-hot Jupiter” about 900 light-years away in the constellation Puppis. The results offer an unprecedented glimpse into the weather conditions of a distant world.&nbsp;



“This planet’s atmosphere behaves in ways that challenge our understanding of how <a href="http://dx.doi.org/10.1038/s41586-025-08664-1" target="_blank" rel="noreferrer noopener">weather</a> works - not just on Earth, but on all planets. It feels like something out of science fiction,” said Julia Victoria Seidel, a researcher at the European Southern Observatory (<a href="https://www.eso.org" target="_blank" rel="noreferrer noopener">ESO</a>) in Chile and lead author of the study.



WASP-121b completes an orbit around its host star in roughly 30 hours, hugging it so closely that one side is perpetually scorched while the opposite side remains significantly cooler. 



This extreme temperature difference results in what scientists describe as a violent and highly unusual climate.&nbsp;



<h2 class="wp-block-heading" id="h-distinct-layers-of-the-exoplanet-s-atmosphere-nbsp">Distinct layers of the exoplanet’s atmosphere&nbsp;</h2>



The research team used high-resolution observations of starlight passing through the exoplanet’s atmosphere to deduce how distinct layers move and mix.



“What we found was surprising: a <a href="https://www.earth.com/news/jupiters-turbulent-atmosphere-includes-a-high-speed-jet-stream/" target="_blank" rel="noreferrer noopener">jet stream</a> rotates material around the planet’s equator, while a separate flow at lower levels of the atmosphere moves gas from the hot side to the cooler side. This kind of climate has never been seen before on any planet,” Seidel explained.&nbsp;



By tracing iron and other gases at different heights, the scientists identified powerful winds racing across Tylos’s skies. “Even the strongest hurricanes in the Solar System seem calm in comparison,” she added.



<h2 class="wp-block-heading" id="h-viewing-the-planet-in-3d">Viewing the planet in 3D</h2>



To map out these winds and their distribution of elements, the astronomers made use of the Very Large Telescope (VLT), merging the light from four of its units into a single signal via a specialized instrument.&nbsp;



The goal was to capture enough detail to distinguish chemical signatures at various altitudes - all within a single transit of WASP-121b in front of its host star.



“The VLT enabled us to probe three different layers of the exoplanet’s atmosphere in one fell swoop,” said study co-author Leonardo A. dos Santos, an assistant astronomer at the <a href="https://www.stsci.edu/home" target="_blank" rel="noreferrer noopener">Space Telescope Science Institute</a> in Baltimore, United States.&nbsp;



<figure class="wp-block-image aligncenter size-full"><a href="https://www.earth.com/wp-content/uploads/2025/02/exoplanet-Tylos_atmospheric-structure_3d-view_illustration_ESO_1m.jpg" target="_blank" rel="noreferrer noopener"><img src="https://www.earth.com/wp-content/uploads/2025/02/exoplanet-Tylos_atmospheric-structure_3d-view_illustration_ESO_1s.webp" alt="This diagram shows the structure and motion of the atmosphere of the exoplanet Tylos (WASP-121b). The exoplanet is shown from above in this figure, looking at one of its poles. The planet rotates counter-clockwise, in such a way that it always shows the same side to its parent star, so it's always day on one half of the planet and night on the other. The transition between night and day is the &quot;morning side&quot; while the &quot;evening side&quot; represents the transition between day and night; its morning side is to the right and its evening side to the left. Credit: ESO" class="wp-image-1960368"/></a><figcaption class="wp-element-caption">This diagram shows the structure and motion of the atmosphere of the exoplanet Tylos (WASP-121b). The exoplanet is shown from above in this figure, looking at one of its poles. The planet rotates counter-clockwise, in such a way that it always shows the same side to its parent star, so it's always day on one half of the planet and night on the other. The transition between night and day is the "morning side" while the "evening side" represents the transition between day and night; its morning side is to the right and its evening side to the left. Credit: ESO</figcaption></figure>



By monitoring how iron, sodium, and hydrogen moved within these layers, the team reconstructed the flow of material from the planet’s deep interior to its outermost atmospheric regions.&nbsp;



“It’s the kind of observation that is very challenging to do with space telescopes, highlighting the importance of ground-based observations of <a href="https://www.earth.com/news/exoplanet-discovery-nasa-identifies-over-5500-distant-worlds/" target="_blank" rel="noreferrer noopener">exoplanets</a>,” noted dos Santos.



<h2 class="wp-block-heading" id="h-metals-and-other-compounds">Metals and other compounds</h2>



The deeper parts of WASP-121b’s atmosphere feature intense heat, while the upper layers experience a dynamic interplay between cooler regions and strong winds.&nbsp;



The combined data indicate that metals and other compounds are shuttled around by swift jets, leading to the unfamiliar climate patterns seen on Tylos.



Alongside iron, sodium, and hydrogen, the researchers uncovered titanium in levels just beneath the high-altitude jet stream - an unexpected finding, given that previous attempts to locate titanium in WASP-121b’s atmosphere had come up short.&nbsp;



<figure class="wp-block-image aligncenter size-full"><a href="https://www.earth.com/wp-content/uploads/2025/02/exoplanet_WASP-121b_Tylos_atmosphere-layers_weather_eso_1m.jpg" target="_blank" rel="noreferrer noopener"><img src="https://www.earth.com/wp-content/uploads/2025/02/exoplanet_WASP-121b_Tylos_atmosphere-layers_weather_eso_1s.webp" alt="The atmosphere of Tylos (WASP-121b) is divided into three layers, with iron winds at the bottom, followed by a very fast jet stream of sodium, and finally an upper layer of hydrogen winds. This kind of climate has never been seen before on any planet. Credit: ESO" class="wp-image-1960558"/></a><figcaption class="wp-element-caption">The atmosphere of Tylos (WASP-121b) is divided into three layers, with iron winds at the bottom, followed by a very fast jet stream of sodium, and finally an upper layer of hydrogen winds. This kind of climate has never been seen before on any planet. Credit: ESO</figcaption></figure>



“It’s truly mind-blowing that we’re able to study details like the chemical makeup and weather patterns of a planet at such a vast distance,” said Bibiana Prinoth, a PhD student at Lund University, Sweden, and ESO.



Prinoth led a companion study published in the journal <a href="http://aanda.org/10.1051/0004-6361/202452405" target="_blank" rel="noreferrer noopener">Astronomy &amp; Astrophysics</a> and co-authored the Nature paper.



The newly detected titanium, hidden at lower altitudes, indicates the planet’s <a href="https://www.earth.com/news/hubble-finds-a-water-rich-planet-with-a-steamy-atmosphere-named-gj-9827d/" target="_blank" rel="noreferrer noopener">atmosphere</a> is even more complex than once thought.&nbsp;



While it remains unclear exactly how these metals form and move around Tylos, one possibility is that temperature gradients and the planet’s day-night contrast help determine where certain elements accumulate.



<h2 class="wp-block-heading" id="h-future-insights-on-alien-climates">Future insights on alien climates</h2>



The fact that WASP-121b’s jets and temperature distributions can be traced in such detail from light-years away marks a significant leap in exoplanet science.&nbsp;



Yet, as astronomers look to study smaller, rockier planets with potentially milder climates, even more powerful instruments will be required.&nbsp;



“The ELT will be a game-changer for studying exoplanet atmospheres,” Prinoth said, referring to the <a href="https://elt.eso.org/" target="_blank" rel="noreferrer noopener">Extremely Large Telescope</a> currently under construction in Chile’s Atacama Desert.&nbsp;



“This experience makes me feel like we’re on the verge of uncovering incredible things we can only dream about now.”



<h2 class="wp-block-heading" id="h-probing-the-atmospheres-of-exoplanets">Probing the atmospheres of exoplanets</h2>



Using next-generation telescopes such as the ELT, researchers hope to probe the atmospheres of Earth-like planets and see if they harbor any hints of habitability.&nbsp;



By refining techniques already showcased in this study, astronomers aim to decode the layers, winds, and potentially life-supporting chemistry of still more distant worlds.&nbsp;



The success of this recent work on WASP-121b foreshadows a new era in which entire atmospheric systems - weather, chemical cycles, and beyond - can be revealed in detail, unveiling the dynamic nature of far-off environments that were once the stuff of pure speculation.



The study is published in the journal <a href="http://dx.doi.org/10.1038/s41586-025-08664-1" target="_blank" rel="noreferrer noopener">Nature</a>.



Image Credit: ESO/M. Kornmesser



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"Out of science fiction" - Weather on an alien planet viewed for the first time ever

A recent study has unveiled how chemical elements and powerful...

Unhealthy,Products.,Food,Bad,For,Figure,,Skin,,Heart,And,Teeth.

Most dietary programs focus on weight loss or meeting U.S. nutrition guidelines. These guidelines do not mention ultra-processed foods (UPFs), even though they are linked to serious health risks. 



Chips, candy, and other mass-produced <a href="https://www.earth.com/news/new-tool-lets-you-check-how-processed-your-food-is-grocerydb/" target="_blank" rel="noreferrer noopener">packaged foods</a> often replace natural ingredients with additives. Studies show eating UPFs increases the risk of diseases and early death.



Despite these risks, no major dietary programs focus on reducing UPF intake. 



To address this gap, researchers from <a href="https://drexel.edu" target="_blank" rel="noreferrer noopener">Drexel University</a> designed an intervention. The goal was to help people eat fewer ultra-processed foods using multiple strategies.



<h2 class="wp-block-heading" id="h-understanding-ultra-processed-foods-the-basics">Understanding ultra-processed foods - the basics</h2>



Ultra-processed foods (UPFs) are the heavily modified, lab-created stuff you find in most grocery store aisles - think packaged snacks, sugary cereals, instant noodles, and even some protein bars. 



They go through multiple industrial processes, packed with additives like preservatives, <a href="https://www.earth.com/news/artificial-sweetener-neotame-has-shocking-effects-on-gut-health/" target="_blank" rel="noreferrer noopener">artificial flavors</a>, emulsifiers, and loads of sugar or refined oils. 



These foods are designed to be super convenient, hyper-palatable, and have a long shelf life. 



But here’s the catch: they often lack real nutrition and can mess with your metabolism, gut health, and even brain chemistry.



Studies link them to everything from obesity and diabetes to <a href="https://www.earth.com/news/artificial-sweetener-erythritol-sugar-substitute-linked-to-blood-clots-heart-disease/" target="_blank" rel="noreferrer noopener">heart disease</a> and even mental health issues.



The problem is, ultra-processed foods are everywhere, and they’re marketed as quick, tasty, and sometimes even "healthy" options. 



But because they’re engineered for taste and texture, they can be addictive, making it easy to overeat without feeling full. 



Most importantly, their ingredient lists often look more like a chemistry experiment than actual food.



<h2 class="wp-block-heading" id="h-reducing-ultra-processed-food-intake">Reducing ultra-processed food intake</h2>



The Drexel University program went beyond education. It included mindfulness strategies to handle cravings, one-on-one meal planning, and household involvement.



The researchers also provided financial support to help participants buy healthier foods, which can be expensive.



The two-month intervention involved 14 adults with overweight or obesity who ate at least two UPF items daily. On average, participants cut their UPF intake by nearly half.



“Reducing UPF intake can be extremely difficult, because the <a href="https://www.earth.com/news/ultra-processed-foods-make-our-bodies-age-faster/" target="_blank" rel="noreferrer noopener">food</a> industry wants us to be hooked on UPFs,” said lead author Dr. Charlotte Hagerman.



“The industry designs UPFs to be ultra-delicious, convenient, cheap, and constantly present in the U.S. - even if not directly in front of us, then on our TVs, phones, and roadside signs.”



<h2 class="wp-block-heading" id="h-promising-results-from-the-intervention">Promising results from the intervention</h2>



Despite the small sample size, the results of the trial were encouraging.



By the end of the program, participants had nearly halved their UPF <a href="https://www.earth.com/news/eating-ultra-processed-foods-makes-your-muscles-weaker-and-more-fragile/" target="_blank" rel="noreferrer noopener">intake</a>, measured both in calories and total items consumed. They also reduced their daily calorie intake by more than 600 calories. 



Sugar consumption declined by 50 percent, while saturated fat intake dropped by 37 percent. Sodium intake also saw a significant decrease of 28 percent. On average, participants lost 7.7 pounds over the two-month period.



“Interestingly, participants did not have meaningful increases in their fruit and vegetable consumption, suggesting that if we want to improve dietary intake more holistically, we may need to more strongly encourage people to eat these foods,” said Hagerman.



<h2 class="wp-block-heading" id="h-how-the-intervention-worked">How the intervention worked</h2>



Participants met weekly with health behavior coaches in both group and individual sessions. 



They learned how to identify UPFs, cope with cravings, and improve their home food environment. Each participant received a $100 grocery store gift card to support healthier purchases.



To track progress, the participants completed detailed food intake reports. They documented everything they ate on selected weekdays and weekends using a specialized assessment tool. 



The researchers classified foods as UPFs or non-UPFs, consulting experts when needed to avoid bias.



<h2 class="wp-block-heading" id="h-psychological-benefits-of-cutting-upfs">Psychological benefits of cutting UPFs</h2>



Beyond physical health, the participants noticed mental and emotional benefits. Many reported feeling better overall, with improvements in mood and <a href="https://www.earth.com/news/ultra-processed-foods-are-harmful-to-nearly-every-part-of-the-body/" target="_blank" rel="noreferrer noopener">energy</a>.



Since UPFs can trigger addiction-like behaviors, reducing intake may help regulate emotions and improve mental clarity. Cutting back on UPFs also seemed to help participants feel more in control of their eating habits, making it easier to maintain a healthier diet.



By addressing both the physical and psychological aspects of food choices, the program helped participants develop a healthier relationship with eating. This could be crucial for long-term success in maintaining dietary changes.



<h2 class="wp-block-heading" id="h-next-steps-for-research">Next steps for research</h2>



“The findings suggest that people can reduce their ultra-processed food intake, if given the proper tools, and that they will be enthusiastic about interventions designed for this purpose,” said Hagerman. 



“The results also suggest that reducing UPF intake will lead to meaningful health improvements – such as weight loss and better mood – in as short as eight weeks.”



The research team plans to expand the study. Future work will test the intervention on a larger sample and evaluate which strategies are most effective. The researchers also want to see if the program works across different populations.



<h2 class="wp-block-heading" id="h-the-bigger-picture">The bigger picture</h2>



This study highlights the need for better public awareness and policies to reduce UPF consumption. Since UPFs dominate the food supply, long-term solutions should address accessibility and affordability of healthier alternatives. 



Education, financial incentives, and community-based programs could help more people reduce their UPF intake. As research continues, these findings may shape new approaches to improving public health through better nutrition.



The study is published in the journal <a href="https://onlinelibrary.wiley.com/doi/10.1002/osp4.70029" target="_blank" rel="noreferrer noopener">Obesity Science &amp; Practice</a>.



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What happens when you diet by removing ultra-processed foods? Doctors found out

Most dietary programs focus on weight loss or meeting U.S....

Icebergs,In,Jokulsarlon,Glacial,Lagoon.,Vatnajokull,National,Park,,Southeast,Iceland,

The world has long operated under the assumption that achieving climate goals would prevent the worst impacts of global warming, such as the melting of Arctic ice.



In 2016, nearly 200 world leaders committed to keeping global temperatures from rising beyond 1.5 degrees Celsius (2.7 degrees Fahrenheit) above pre-industrial levels. 



This agreement has shaped policies across nations, and driven efforts to cut emissions and transition toward cleaner energy.



Yet, despite those commitments, scientists now confirm that Earth's temperature increase crossed the 1.5-degree threshold in 2024. Not only has the planet <a href="https://www.earth.com/news/drastic-warming-will-transform-the-arctic-beyond-recognition/" target="_blank" rel="noreferrer noopener">warmed</a> faster than expected, but the changes already in motion cannot be undone.



The consequences are affecting every continent in a variety of ways, from intensifying storms to record-breaking heat waves.



<h2 class="wp-block-heading" id="h-paris-agreement-pledges">Paris Agreement pledges</h2>



A new study published in the journal Science reveals an even starker reality. If all countries follow through on their <a href="https://unfccc.int/process-and-meetings/the-paris-agreement" target="_blank" rel="noreferrer noopener">Paris Agreement</a> pledges - which is a big assumption in itself - the planet is still on track to warm by an average of 2.7 degrees Celsius by the end of the century.



This level of warming will reshape economies, displace populations, and alter ecosystems in ways that humans have never before experienced.



"This is a reality check: we took a first step by signing the Paris Agreement, but we're already living in the 'changed world' we are attempting to prevent," noted Ted Schuur, a professor at <a href="https://nau.edu" target="_blank" rel="noreferrer noopener">Northern Arizona University</a>.



"It's time to take the next step to adjust our <a href="https://www.earth.com/news/arctic-warming-permafrost-melt-devastating-role-accelerating-global-climate-change/" target="_blank" rel="noreferrer noopener">climate goals</a> to accommodate this new reality."



<h2 class="wp-block-heading" id="h-arctic-s-role-in-accelerated-warming">Arctic's role in accelerated warming</h2>



One of the reasons the planet passed <a href="https://www.earth.com/news/costs-of-reversing-climate-change-multiply-after-a-tipping-point/" target="_blank" rel="noreferrer noopener">1.5 degrees of warming</a> so much sooner than expected lies far to the north. The Arctic, which once seemed distant and isolated, is now a central driver of climate shifts around the world.



Research shows that the Arctic is warming nearly four times faster than the rest of the planet. This is largely because ice, once a defining feature of the region, is disappearing at an alarming rate.



Sea ice, which used to form reliably every winter and partially melt in summer, is now melting at an accelerating pace. As more ice disappears, more of the ocean remains exposed.



<h2 class="wp-block-heading" id="h-warming-and-dark-arctic-waters">Warming and dark Arctic waters</h2>



Since dark ocean water absorbs more sunlight than white ice, this change amplifies the warming trend, creating a feedback loop that speeds up ice loss year after year.



"The <a href="https://www.earth.com/news/arctic-industrialization-how-will-it-impact-delicate-ecosystems/" target="_blank" rel="noreferrer noopener">Arctic</a> seas have already become unrecognizable," Schuur said. "The amount of ice we're left with at the end of the summer keeps declining over time. Soon enough, summer ice could become a thing of the past."



This transformation will have far-reaching consequences. <a href="https://www.earth.com/news/permafrost-is-no-longer-permanent-arctic-communities-in-danger/" target="_blank" rel="noreferrer noopener">Coastal Arctic communities</a> depend on sea ice for hunting, transportation, and protection from storm surges. 



As ice disappears, shipping routes will open, altering global trade patterns and potentially creating new geopolitical tensions.



<h2 class="wp-block-heading" id="h-thawing-permafrost-crisis">Thawing permafrost crisis</h2>



While melting sea ice is a visible reminder of climate change, another transformation is unfolding on land that is less obvious. 



Beneath the Arctic’s surface lies permafrost - frozen ground that has locked away massive amounts of carbon for thousands of years.



<figure class="wp-block-image aligncenter size-full"><a href="https://www.earth.com/wp-content/uploads/2025/02/arctic-meltdown_global-warming-acceleration_credit-Victor-Leshyk_1.jpg" target="_blank" rel="noreferrer noopener"><img src="https://www.earth.com/wp-content/uploads/2025/02/arctic-meltdown_global-warming-acceleration_credit-Victor-Leshyk_1s.webp" alt="How 2.7 degrees of warming could accelerate permafrost thaw, ice melt and sea level rise in the Arctic. Credit: Victor Leshyk" class="wp-image-1959572"/></a><figcaption class="wp-element-caption">How 2.7 degrees of warming could accelerate permafrost thaw, ice melt and sea level rise in the Arctic. Credit: Victor Leshyk</figcaption></figure>



As temperatures rise, this <a href="https://www.earth.com/news/thawing-permafrost-may-release-billions-of-tons-of-carbon-by-2100/" target="_blank" rel="noreferrer noopener">permafrost is thawing</a> and releasing carbon dioxide and methane into the atmosphere. 



These greenhouse gases intensify global warming, making it even harder to slow the planet’s temperature increase.



<h2 class="wp-block-heading" id="h-exponential-warming-acceleration">Exponential warming acceleration</h2>



Scientists estimate that, as this organic material decomposes, it will emit carbon at a rate that is comparable to that of industrialized nations.



Despite the scale of this threat, Schuur explained that policymakers in 2016 did not fully account for these Arctic-driven emissions.



"We're talking about a place that's remote to many people, but changes in the <a href="https://www.earth.com/news/the-arctic-may-be-ice-free-sooner-than-we-expected/" target="_blank" rel="noreferrer noopener">Arctic</a> don't stay in the Arctic," Schuur said.



The warming Arctic is shaping <a href="https://www.earth.com/news/arctic-warming-influences-us-weather-patterns-ai-machine-learning/" target="_blank" rel="noreferrer noopener">weather patterns worldwide</a>, intensifying droughts, and increasing the likelihood of wildfires worldwide.



The effects of permafrost thaw are already being felt far from the Arctic. Extreme heat events, like the 70 days of 110-degree temperatures in Phoenix last summer, are partially linked to these additional greenhouse gas emissions. 



<h2 class="wp-block-heading" id="h-how-arctic-warming-impacts-the-world">How Arctic warming impacts the world</h2>



The rapid transformation of the Arctic is not just an environmental issue - it is an economic and social challenge that will affect millions of people.



<a href="https://www.earth.com/news/sea-level-rise-will-cost-coastal-cities-over-1-trillion-in-damages/" target="_blank" rel="noreferrer noopener">Coastal cities</a>, which are already vulnerable to rising seas, will face even more frequent flooding as ice sheets continue to melt. 



Fisheries that support millions of livelihoods will struggle to adapt as <a href="https://www.earth.com/news/ocean-warming-broke-records-for-450-straight-days/" target="_blank" rel="noreferrer noopener">ocean temperatures</a> rise and ecosystems shift.



The disappearance of Arctic ice is also reshaping the world’s energy landscape. As previously unreachable oil and gas reserves become accessible, some countries may push to exploit these resources, potentially increasing <a href="https://www.earth.com/news/global-co2-emissions-rise-as-nations-tackle-fossil-fuel-dependence/" target="_blank" rel="noreferrer noopener">fossil fuel production</a> at a time when emissions need to be cut.



Schuur emphasized that the world must recognize this new reality and respond accordingly. The past assumption that global warming could be controlled easily is no longer valid.



The task ahead is twofold: adapt to the inevitable changes that are already happening and work to prevent the worst-case scenarios from unfolding.



<h2 class="wp-block-heading" id="h-preparing-for-an-unavoidable-future">Preparing for an unavoidable future</h2>



The latest projections show that, if current policies remain unchanged, the planet will warm by 2.7 degrees Celsius before 2100. 



That means there will be more extreme weather events, rising sea levels, and ecosystems pushed beyond their limits.



"We can't stop change from happening; it's already happening," Schuur said. "But we can slow the change by reducing <a href="https://www.earth.com/news/worlds-first-greenhouse-gas-detecting-satellite-is-now-in-orbit/" target="_blank" rel="noreferrer noopener">greenhouse gas emissions</a> and managing the change as best as we can so that people and ecosystems are better positioned for the future."



Governments must strengthen infrastructure, improve disaster preparedness, and develop climate-resistant agriculture. 



Individuals can push for policies that prioritize renewable energy, sustainable urban planning, and conservation efforts.



<h2 class="wp-block-heading" id="h-action-is-needed-at-every-level">Action is needed at every level</h2>



While global policies play a crucial role, local action can often have a more immediate <a href="https://www.earth.com/news/first-ice-free-day-in-the-arctic-may-arrive-in-2027/" target="_blank" rel="noreferrer noopener">impact</a> against Arctic warming. 



Schuur encouraged people to engage with their city, county, or state <a href="https://www.earth.com/news/sustainable-food-systems-are-gaining-momentum/" target="_blank" rel="noreferrer noopener">sustainability efforts</a>. Getting involved can mean attending meetings, proposing new policies, or supporting climate initiatives through voting.



Individual actions also matter. Choosing cleaner transportation, reducing energy use, and supporting businesses that prioritize sustainability all contribute to slowing climate change. 



These choices may not reverse <a href="https://www.earth.com/news/global-warming-is-accelerating-beyond-control-as-co2-levels-rise/" target="_blank" rel="noreferrer noopener">global warming</a>, but they can delay its effects and provide communities with more time to adapt.



"Don't give up, even in the face of change," Schuur said. "Instead, change your thinking. Say to yourself: I live in a new, changed world. What can I do to help adapt and slow the change so we have more time to adjust?"



The challenge ahead is immense, but action at every level - global, national, and local - will determine how well the world navigates this new era. 



The time for waiting has passed. Now is the moment to prepare for the world that is already here.



The study is published in the journal <a href="https://www.science.org/doi/10.1126/science.ads1549" target="_blank" rel="noreferrer noopener">Science</a>.



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Earth is already changing in 'unimaginable ways' due to rapid Arctic meltdown

The world has long operated under the assumption that achieving...

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Today’s Video of the Day comes from the <a href="http://www.esa.int/">European Space Agency</a> and features a look at the new Sentinel 5-P satellite that will monitor air quality on Earth.
Set for launch on October 13, 2017, Sentinel 5-P will be the latest addition to the Copernicus program, a joint venture between the European Space Agency and the European Commission. Sentinel 5-P will mark the first <a href="https://www.earth.com/news/mexico-city-driving-restrictions/">atmospheric chemistry</a> mission within the program.
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By <a href="mailto:rarnold@earth.com">Rory Arnold</a>, <a href="https://www.earth.com/staff">Earth.com</a> Staff Writer
Video Credit: <a href="http://www.esa.int/">European Space Agency</a>

New Sentinel 5-P satellite to monitor air quality from space

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