Emissions Already Affecting Climate, UN Report Finds

New York Times : Earth’s climate and ecosystems are already being affected, for better and mostly for worse, by the atmospheric buildup of smokestack and tailpipe gases that trap heat, top climate experts said today.In its fourth assessment of global warming, the Intergovernmental Panel on Climate Change used its strongest language yet in drawing a link between human activity and recent warming.And while curbs in emissions can limit risks, they said, vulnerable regions must adapt to shifting weather patterns and rising seas.