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Tuesday, September 3rd, 2019

Landsat Illustrates Five Decades of Change to Greenland Glaciers

Ice fronts have retreated, rocky peaks are more exposed, fewer icebergs drift to the ocean: the branching network of glaciers that empty into Greenland’s Sermilik Fjord has changed significantly in the last half century. Comparing Landsat images from 1972 and 2019, those changes and more come into view. The glaciers appear brownish grey in this

Tuesday, August 27th, 2019

Fires Ravage the Amazon

Thousands of fires have broken out in the Amazon rainforest. Satellite data show that there are almost four times as many fires this year compared to the same period last year. Apart from Brazil, parts of Peru, Bolivia, Paraguay and Argentina have also been affected. While forest fires normally occur in Brazil’s dry season, which

Tuesday, August 20th, 2019

Climate Report Shows Effects of Planet’s Warming Across Multitudes of Key Indicators

A new “State of the Climate” report released on Aug. 12, 2019, by the American Meteorological Society (AMS) confirms that 2018 was one of the hottest years on record. Global surface temperatures continued the trend in which every year since the turn of the 21st century has been hotter than any year experienced in the

Thursday, August 8th, 2019

NASA Targets Coastal Ecosystems with New Space Sensor

NASA selected a space-based instrument under its Earth Venture Instrument (EVI) portfolio that will make observations of coastal waters to help protect ecosystem sustainability, improve resource management and enhance economic activity. The selected Geosynchronous Littoral Imaging and Monitoring Radiometer (GLIMR) instrument, led by principal investigator Joseph Salisbury at the University of New Hampshire, Durham, will

Tuesday, August 6th, 2019

Loss of Arctic’s Reflective Sea Ice Will Advance Global Warming by 25 Years

Losing the remaining Arctic sea ice and its ability to reflect incoming solar energy back to space would be equivalent to adding one trillion tons of CO2 to the atmosphere, on top of the 2.4 trillion tons emitted since the Industrial Age, according to current and former researchers from Scripps Institution of Oceanography at the

Tuesday, July 30th, 2019

Flowing Antarctic Ice Mapped 10 Times More Accurately

Far more accurate than any previous map, this new representation of glacier flows in Antarctica opens the door to an improved understanding of the vast continent and the future pace of sea-level rise. To create the new map, researchers at the University of California, Irvine, and NASA’s Jet Propulsion Laboratory in Pasadena, Calif., combined input

Tuesday, July 23rd, 2019

It’s Official: Louisiana is Sinking

Louisiana is officially sinking. It has been 29 years since the National Geodetic Survey (NGS) measured the state’s subsidence. After completing four absolute gravity observations this past year, with the help of LSU’s Center for GeoInformatics (C4G), the NGS’s most-recent findings show the state’s change in elevation. “This is the second observation NGS has performed

Tuesday, July 16th, 2019

Student Airborne Researchers Explore California Air Quality 

During summer 2019, 28 undergraduate students are participating in an eight-week NASA airborne science field experience that will immerse them in the agency’s Earth Science research. NASA’s Student Airborne Research Program (SARP), embarking on its 11th year,  offers an opportunity for undergraduates majoring in sciences, mathematics and engineering to participate in all aspects of a

Tuesday, July 9th, 2019

Satellites Find Biggest Seaweed Bloom in the World

An unprecedented belt of brown algae stretches from West Africa to the Gulf of Mexico—and it’s likely here to stay. Scientists at the University of South Florida in St. Petersburg’s College of Marine Science used NASA satellite observations to discover and document the largest bloom of macroalgae in the world, dubbed the Great Atlantic Sargassum

Tuesday, July 2nd, 2019

Looking For Freshwater In All the Snowy Places

Snowflakes that cover mountains or linger under tree canopies are a vital freshwater resource for over a billion people around the world. To help determine how much freshwater is stored in snow, a team of NASA-funded researchers is creating a computer-based tool that simulates the best way to detect snow and measure its water content

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