La Nina weather pattern to last for months: UN agency

The weather pattern behind floods and extreme conditions in Australia, Asia, Africa and South America is one of the strongest ever and could last for four more months, the UN weather agency said Tuesday.

Penn State scientist at center of a storm

A few words culled from some hacked e-mails in Britain have generated chaos in the world of climate science -- throwing dark clouds over Pennsylvania State University and stirring up negative publicity for the field that ...

Global sunscreen won't save corals

Emergency plans to counteract global warming by artificially shading the Earth from incoming sunlight might lower the planet's temperature a few degrees, but such "geoengineering" solutions would do little to stop the acidification ...

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