Arctic ice melt is changing ocean currents

A major ocean current in the Arctic is faster and more turbulent as a result of rapid sea ice melt, a new study from NASA shows. The current is part of a delicate Arctic environment that is now flooded with fresh water, an ...

Amazon deforestation for January hits record

Deforestation in the Amazon rainforest in Brazil more than doubled in January compared with the previous year, according to official data published Friday.

Antarctica appears to have broken a heat record

The temperature in northern Antarctica hit nearly 65 degrees (18.3 degrees Celsius), a likely heat record on the continent best known for snow, ice and penguins.