NASA Climate Change
03/22/2017 at 18:01. Facebook
NASA Climate Change
03/21/2017 at 16:59. Facebook
Over the last decade, NASA’s twin GRACE satellites measured over 2 trillion tons of mass loss from Greenland's ice sheet (which is up to 2 miles, or about 3 kilometers, thick in some places).

Now the Oceans Melting Greenland (OMG) team is back in the field for its second year to find out specifically how much ice the island is losing due to warmer ocean waters around the coastline. This...
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NASA Climate Change
03/21/2017 at 15:51. Facebook
Atmospheric scientist Róisín Commane of Harvard University sent back a video postcard from Ascension Island and the Azores Islands, the seventh and eighth legs of the Atmospheric Tomography, or ATom #EarthExpedition. Flying over the Atlantic Ocean, the science team saw evidence of fires in Africa and dust from the Sahara.

The ATom mission aboard NASA’s DC-8 aircraft and flying laboratory is...
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NASA Climate Change
03/21/2017 at 15:46. Facebook
NASA’s Oceans Melting Greenland (OMG) crew captured these photos of Wolstenholme Fjord last week, one of the few places in the world where multiple glaciers flow into the same fjord. Wolstenholme Fjord is located in the northwest corner of Greenland, north of Thule Air Base.

While the mission is surveying the island from the air, it’s also important to get imagery from the ground to help...
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NASA Climate Change
03/20/2017 at 14:44. Facebook
NASA’s Oceans Melting Greenland (OMG) campaign is back in action, beginning its second survey of Greenland’s glaciers. The orange lines on this map show where the crew plans to survey and the small inset shows the crew in front of the modified G-III aircraft before leaving Houston. Follow the plane here: [ Link ].

Global sea level rise will be one of the major...
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The latest data from our Goddard Institute for Space Studies (GISS), February 2017 was the second warmest February in 137 years of modern record-keeping. Get the details: [ Link ]
Each year in March, the Arctic sea ice pack should reach its greatest extent, but this year it’s far below average. Our Ice, Cloud and land Elevation Satellite-2, or ICESat-2 continuously monitors to measure sea ice. More: [ Link ]
We continue to do amazing work to develop and launch our missions and increase this nation’s technical capabilities across the board. The fiscal year 2018 budget proposal enables us to continue our work with industry to enhance government capabilities, send humans deeper into space, continue our innovative aeronautics efforts and explore our universe. The budget supports our continued...
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At 15 years old, the Gravity Recovery and Climate Experiment (GRACE) mission has lasted three times longer than originally planned. The twin satellites have revolutionized our view of how water moves and is stored around the planet, with implications for climate change.

GRACE mission: 15 years of watching water on Earth
Some climate models are suggesting that El Niño may return later this year, but for now, the Pacific Ocean lingers in a neutral "La Nada" state, according to NASA climatologist Bill Patzert. Whether or not El Niño returns will be determined by a number of factors, one of which is the larger stage on which El Niño and La Niña play, the Pacific Decadal Oscillation (PDO).

Could leftover heat from last El Niño fuel a new one?
We're back! At the South by Southwest (SXSW) Interactive Festival, that is, and we're sharing exciting missions, discoveries, technology advancements and plans for future space exploration. Join through March 14, and at the SXSW Tradeshow, March 13-15. Details: [ Link ] #SXSW #NASASXSW
Researchers using data from a land-surface modeling effort maintained by NASA and other organizations found that future American Southwest desert heatwaves will put songbirds at greater risk of death from dehydration and mass die-offs.

U.S. desert songbirds at risk in a warming climate
Sea ice helps maintain Earth's temperature, so predicting how the ice extent (a measurement of the area of ocean where there is at least some sea ice) might change helps us understand our warming climate. NASA scientists have developed a new model for better predicting the Arctic’s annual changes.

NASA study improves forecasts of summer Arctic sea ice coverage
Vital sign update: Sea level rise is caused primarily by two factors related to climate change: the added water from melting land ice and the expansion of sea water as it warms. NASA's latest satellite observations show global average sea level rising currently at 3.4 mm per year. It has risen 8 inches since 1880; it is projected to rise another 1 to 4 feet by 2100.

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Sea level | NASA Global Climate Change
Want to help us with important cloud observations? Download the GLOBE Observer app and start providing data! This NASA-developed app allows citizen scientists (YOU!) to make cloud observations that complement those from our satellites. Get the details and download the app here: [ Link ]
People Cause Most U.S. Wildfires

Humans—not lightning—trigger most wildfires in the United States. According to a study published in February 2017 in the Proceedings of the National Academy of Sciences, 84 percent of the blazes that firefighters were called to fight between 1992 and 2012 were ignited by people. Some common ways that people start fires include discarding cigarettes, leaving...
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Vital sign update: Arctic sea ice reaches its minimum extent each September. According to NASA satellite observations and the National Snow and Ice Data Center (NSIDC), the average Arctic sea ice minimum is declining at a rate of 13.3 percent per decade, with 2012's extent being the lowest in the satellite record. The NSIDC uses data from NASA and other agencies to monitor sea ice extent over...
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Arctic sea ice minimum | NASA Global Climate Change
Vital sign update: 2016 was the warmest year on record, continuing a decades-long warming trend in global surface temperature.

Global surface temperature | NASA Global Climate Change