World's forests increasingly taking up more carbon

The world's forests are increasingly taking up more carbon, partially offsetting the carbon being released by the burning of fossil fuels and by deforestation in the tropics, according to a new study.

Video: The krill factor in ocean mixing

Scientists have long chalked up ocean mixing of salt, heat, nutrients and gases, such as oxygen and carbon dioxide, to wind and tides. New research is investigating another possible contributor: krill. Mixing ocean water ...

Future impacts of El Nino, La Nina likely to intensify

When an El Niño or its opposite, La Niña, forms in the future, it's likely to cause more intense impacts over many land regions—amplifying changes to temperature, precipitation and wildfire risk.

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