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Update: Carbon Dioxide Concentration
July 2021's global average concentration of atmospheric carbon dioxide (CO2) was about 417 parts per million (ppm), a nearly 49% increase since 1850, caused primarily by humans burning fossil fuels.
Update: Sea Level
Global sea level is rising at an average rate of 3.4 millimeters (0.13 inches) per year. That's like adding the amount of water in Lake Superior (12,100 cubic kilometers, or about 2,900 cubic miles) to the ocean every decade.
Protecting the Ozone Layer Also Protects Earth's Ability to Sequester Carbon
A new study from Lancaster University, NASA, and others finds the Montreal Protocol protects Earth’s plants and may help keep the planet from warming another 0.85 °C (1.53 °F) by 2100.
NASA's MISR Instrument Sees California Wildfire Smoke Plumes From Space
Smoke from several large wildfires burning in Northern California can be seen traveling miles into the atmosphere.
Landsat 9: Continuing 50 Years of Eyes on our Changing Planet
For almost half a century, Landsat satellites have been in orbit, tracking changes to the landscapes and coastal areas of our home planet. Landsat 9 will continue that legacy.
ECOSTRESS Data Incorporated Into New Wildfire Response Tool
The instrument on the International Space Station is uniquely positioned to provide wildfire responders with a high-resolution look at fire progression.
Earth Science in Action: A New Way to Track Dust Storms and Valley Fever (Hint: with Cake Pans)
Climate change may increase the number of dust storms in the southwestern U.S., which can spread the fungus that causes Valley fever. A NASA Earth Applied Sciences team is combining satellite data, marbles, and, yes, baking pans to help track this threat.
New FAQ: What’s the difference between glacier or ice sheet surface mass balance and total mass balance?
Think you know the answer? This page comes with an animated graphic to help explain the concept.
Images of Change: Flooding Increases in Charleston, South Carolina
The metropolitan area of Charleston, South Carolina, is growing quickly, and much of the development is on low-lying land increasingly vulnerable to flooding from sea-level rise and other factors. See how the area has changed since January 1985.
Images of Change: Flooding from Tittabawassee River, Michigan Dam Failure
Sanford Dam failed on May 19, 2020, flooding the area downstream. The view from space shows a portion of Michigan between May 4, 2020 and May 20, 2020, when the Tittabawassee River peaked some 10 feet above flood stage (the level at which inundation occurs).
Images of Change: Flooding in Mali's Delta
In summer 2020, exceptionally heavy rains in the Guinea Highlands of West Africa intensified seasonal floods on the Niger River and in central Mali's vast inland delta. Satellite images show a transformed landscape.
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