Giant ribbons of moisture around the globe are behind many floods, and their effects could be amplified by climate change

Is this the face of future water conflicts? China, India and Saudi Arabia have lately leased vast tracts of land in sub-Saharan Africa at knockdown prices. Their primary aim is to grow food abroad using the water that African countries don't have the infrastructure to exploit. Doing so is cheaper and easier than using water resources back home. But it is a plan that could well backfire.

Most of India's 2.8 million prostitutes own cellphones – making it easier to contact them about HIV tests.

Today's climate models are more sophisticated than ever – but they're still limited by our knowledge of the Earth. So how well do they really work?

New data and models show that Greenland's ice cap, the world's second largest, is on track to hit a point of no r

Even doctors recoil from faecal transplants – but you might get over such squeamishness if it was your only hope of beating a killer infection.

The little guys are suing energy giants for the effects of climate change

The tide is turning on the old idea that single extreme weather events cannot be blamed on climate change.

Humans were fiddling with climate thousands of years even before we started farming

Even before Europeans arrived, farmers were changing South American ecosystems with a landscaping method previously unrecognised in the region.