Endorsing a proposal which states humans can reduce global warming means that he believes we were at least partly responsible for it in the first place.
No one is denying that the report says there is SOME human contribution. That is a far cry from Primary causes. Co2 is only ONE "greenhouse gas" out of hundreds or thousands. Bush talked EXCLUSIVLY about Co2 releases since the industrial revolution. That is not a subject of debate on either side of the question. Co2 emissions have a direct and measurable human contribution. To say otherwise is a lie. Bush however, made NO assertion that GLOBAL WARMING had a significant human cause. You are mixing the context and trying to make it fit your own view just as the NYT did. They know the difference between so called greenhouse gasses and global warming but the gambled that us idiots out here would know the difference. Apparently some dont.