Humans 'Very Likely' Making Earth Warmer

(AP) -- The most authoritative report on climate change is using the strongest wording ever on the source of global warming, saying it is "very likely" caused by humans and already is leading to killer heat waves and stronger hurricanes, delegates who have seen the report said Thursday.

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<p><a href="http://www.physorg.com/news89557339.html">Humans 'Very Likely' Making Earth Warmer</a></p> <p>(AP) -- The most authoritative report on climate change is using the strongest wording ever on the source of global warming, saying it is "very likely" caused by humans and already is leading to killer heat waves and stronger hurricanes, delegates who have seen the report said Thursday.</p>