
In the semi-arid Andes, glaciers store water and control the runoff of mountain rivers. They feed water to big cities such as Lima and Arequipa and irrigate the surrounding lowlands. But as the planet warms, mountain glaciers in the tropics are receding steadily. Despite their paramount importance, we don’t know the scale and the rate…
Gridded Population of the World (GPW), the Environmental Performance Index (EPI), and the Last of the Wild/Human Footprint collection are just a few of the many SEDAC data holdings that can now be found via the improved search interface Reverb—NASA’s Next Generation Earth Science Discovery Tool.

A recent study by the Stockholm Environment Institute warns that the American Southwest is exhausting its water resources, and if water use isn’t reduced, “The cumulative water shortfall for the Southwest for the next century, without adaptation, will be 1,815 million acre feet” due to population and economic growth. Climate change will, of course, make…

To those who have never been, the Golden State is known for luxurious palm tree-lined avenues, sun-drenched beaches, and picturesque mountains. But not all parts of California were created equal. The state’s San Joaquin Valley hosts a scene entirely different from the images of Malibu beaches depicted in travel brochures. It is the non-glittering core…

“We have in the world today two dangerously different views of the future,” the view of natural scientists and the view of economists, says Lester Brown, founder of the Earth Policy Institute and a keynote speaker at the 17th annual International Sustainable Development Conference.

A new audio slideshow about the páramo ecosystem in the Andes, at risk of becoming drier because of changing climate conditions

A new book of puzzles on earthquakes, weather, climate and hydrothermal vents has been recognized for distinguished achievement by the Association of Educational Publishers. Using real-world scientific data, Earth Science Puzzles lets students practice key earth science skills and concepts such as locating an earthquake or figuring out what controls the amount of water flowing…

Check out some pictures from IRI’s recently concluded Summer Institute on Climate Information for Public Health.

Coral reefs, the “rainforests of the sea,” are some of the most biodiverse and productive ecosystems on earth. But tragically, they are in crisis.