The 11 'billion-dollar' weather disasters of 2012

The National Oceanic and Atmospheric Administration (NOAA) has released a preliminary list of the most extreme weather events in the US of 2012.

Team dramatically improves US flood and drought prediction

A Columbia Engineering School team says it's made a major step in improving forecasts of extreme weather events in the US.

Amazon forest becoming less green

Satellite data is revealing an Amazon rainforest that's decidedly less green than usual, showing the catastrophic effects of last year's record-breaking drought.

2010 drought could presage end of Amazon carbon sink

Two 'once-in-a-century' droughts have hit the Amazon rainforest in just five years, scientists say, removing the region's ability to act as a carbon sink.

US to face severe droughts, study finds

The US may be set for severe and prolonged droughts in the coming decades, a new government study has found.