From the NYT:
In a stark shift for the Bush administration, the United States has
sent a climate report to the United Nations detailing specific and
far-reaching effects that it says global warming will inflict on the
American environment.
In the report, the administration for the
first time mostly blames human actions for recent global warming. It
says the main culprit is the burning of fossil fuels that send
heat-trapping greenhouse gases into the atmosphere.
But while
the report says the United States will be substantially changed in the
next few decades -- ''very likely'' seeing the disruption of snow-fed
water supplies, more stifling heat waves and the permanent
disappearance of Rocky Mountain meadows and coastal marshes, for
example -- it does not propose any major shift in the administration's
policy on greenhouse gases.