'Megadrought' to hammer US West as 21st century unfolds

A new research has revealed that a "megadrought" will hit the Southwest US and much of America's breadbasket, the Great Plains, late in this century.

Feb 15, 2015, 12:25 PM IST

Carbon emissions up risk of US megadroughts

Human-produced greenhouse gas emissions drives up the risk of severe droughts, shows a new study carried out in the US.

Feb 13, 2015, 17:19 PM IST

Amazon rainforest hit hard by megadrought

An Amazon rainforest area twice the size of California has been hit hard by a megadrought that began in 2005 and caused widespread damage to the canopy that blankets the dense vegetation, says a new NASA-led study.

Jan 21, 2013, 14:52 PM IST

`Ancient megadrought struck 16,000 years ago`

The drought was so intense that it dried out Africa`s Lake Victoria.

Mar 04, 2011, 10:43 AM IST