NYT article states that “Senator John McCain called the White House stance on climate change ‘terribly disappointing’ and said inaction in the face of mounting scientific data was unjustified.” Senator McCain, along with Senator Lieberman first introduced the McCain-Lieberman bill 3 years ago, called the Climate Stewardship Act which aimed to bring about modest curbs on greenhouse gases. The White House continues to oppose the legislation due to “cost to the economy” and “uncertainty of the science”.

Source: http://www.nytimes.com/2004/11/16/politics/16mccain.html