claim: Over 97 percent of the scientific community â¦ believe that humans are contributing to climate change.
evidence: ESB National Grid, Ireland's electric utility, in a 2004 study that, concluded that to meet the renewable energy targets set by the EU in 2001 would "increase electricity generation costs by a modest 15%" "Impact of Wind Power Generation in Ireland on the Operation of Conventional Plant and the Economic Implications" (PDF).