George W Bush(Republican, governor of Texas )
Efforts to improve our environment must be based on sound science, not social fads. Scientific data shows average temperatures have increased slightly during this century, but both the causes and the impact of this slight warming are uncertain. Changes in the earth's atmosphere are serious and require much more extensive scientific analysis. I oppose the Kyoto Protocol. It is ineffective, inadequate and unfair to the us because it exempts 80 per cent of the world, including major population centers such as China and India, from compliance.

Al Gore ( Democrat, vice-president of the US )
The Protocol remains a work in progress. We must negotiate clear rules for its market based mechanisms and achieve meaningful participation by key developing countries.

John MaCain ( Republican