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Carbon dioxide's effect on global warming 'understimated'

The sensitivity of the Earth system to a doubling of atmospheric carbon dioxide may be twice as great as scientists had thought

2014 World Cup to nearly double carbon emissions over 2010 | Grist

FIFA estimates that offsetting the 2.72 million tons of carbon will cost about $2.5 million

Extreme weather worries insurers, farmers

Miller estimated that Iowa has experienced one weather anomaly every four years — such as an unusually dry spring or wet summer — since 1980. That compares with a previous rate of one weather anomaly every 20 years.

"There's no doubt that we have a wetter (climate) that we're dealing with," he said.

Nov. 2012: Iowa scientists: Drought a sign of climate change

DES MOINES, Iowa (AP) -- This year's drought is consistent with predictions that global climate change would bring about weather extremes including more frequent droughts, said a report released Monday.