Global warning

Plant stress signals early warning about drought

In July this year, farmers in the US Midwest and plains regions watched crops wilt and die after a stretch of unusually low precipitation and high temperatures.

Dec 06, 2012, 16:46 PM IST

Climate to widen sleeping sickness risk to southern Africa

Sleeping sickness could threaten tens of millions more people as the tsetse fly which transmits the disease spreads to southern Africa as a result of global warming, a study published on Wednesday says.

Nov 09, 2011, 09:41 AM IST