Reconstructing global climate through Earth's history

A key component when forecasting what the Earth's climate might look like in the future is the ability to draw on accurate temperature records of the past. By reconstructing past latitudinal temperature gradients (the difference ...

Warming Greenland ice sheet passes point of no return

Nearly 40 years of satellite data from Greenland shows that glaciers on the island have shrunk so much that even if global warming were to stop today, the ice sheet would continue shrinking.

Restoring degraded tropical forests generates big carbon gains

More than half of the world's aboveground carbon is stored in tropical forests, the degradation of which poses a direct threat to global climate regulation. Deforestation removes aboveground carbon in the form of trees, reducing ...

Global warming makes tropical soils leak carbon dioxide

Tropical forest soil warmed in experiments to levels consistent with end-of-century temperature projections released 55 percent more CO2 than control plots, exposing a previously underestimated source of greenhouse gas emissions, ...

A warming California sets the stage for future floods

By the 2070s, global warming will increase extreme rainfall and reduce snowfall in the Sierra Nevada, delivering a double whammy that will likely overwhelm California's reservoirs and heighten the risk of flooding in much ...

How airplanes counteract St. Elmo's Fire during thunderstorms

At the height of a thunderstorm, the tips of cell towers, telephone poles, and other tall, electrically conductive structures can spontaneously emit a flash of blue light. This electric glow, known as a corona discharge, ...

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