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In Alaska's largest river delta, tundra that has been scorched by wildfire, is still emitting more methane than the rest of the landscape long after the flames died, scientists have found. The potent greenhouse gas can originate from decomposing carbon stored in permafrost for thousands of years. Its release could accelerate climate warming and lead to more frequent wildfires in the tundra, where blazes have been historically rare. The new study, published in Environmental Research Letters, was

Greenbelt MD (SPX) Apr 19, 2023 - The green light streaking across the cloudy sky was something that Daichi Fujii had never seen before. The museum curator's motion-detecting cameras were set up near Japan's Mount Fuji to capture me

Earth Day Connections: NASA Investigates Vegetation A visualization of 'greenness' change over Canada and Alaska. Credit: NASA's Goddard Space Flight Center By Kate Ramsayer, In Brief: From the vantage point of space, NASA’s fleet of Earth-observing satellites investigates connections between ecosystems that are continents apart, or right next door. Part II From the vantage point of space, NASA’s fleet of Earth-observing satellites joins with those of partner interagency and international agencies to investigate and illuminate connections between ecosystems that are continents apart, or r...

Credit: NASA's Goddard Space Flight Center Before its September 2018 launch, the ICESat-2 mission team was focused on making sure the satellite met its science requirements, said Tom Neumann, the mission’s project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. And it has, by precisely measuring the height of the ice sheets at Earth’s poles, of sea ice floes above the ocean waters, and of forest canopies. The satellite’s continuous coverage around the globe, with height measurements of Earth’s surface taken every 2.3 feet (70 centimeters) along its ground pat...