Maybe this wasn't a joke.

Guardian UK

US rejects all proposals on climate change
· Embarrassment for Blair as G8 draft covered in red ink
· Little hope of any deal at summit in two weeks

John Vidal, environment editor
Saturday May 26, 2007
The Guardian

The US has rejected any prospect of a deal on climate change at the G8 summit in Germany next month, according to a leaked document.

The scene is set for a showdown between the US and other G8 countries who want early action on climate change. Germany's environment minister, Sigmar Gabriel, said the country was prepared to block decisions on other issues unless the US and other G8 members made concessions on the environment.

"America doesn't want to commit to firm goals. We can't put the global future of our children at risk because of the narrow-mindedness of individual negotiating partners."