By Andrew C. Revkin for the New York Times
Published: September 21, 2009
The world leaders who are meeting at the United Nations to discuss climate change on Tuesday, are faced with an intricate challenge: building momentum for an international climate treaty at a time when global temperatures have been stable for a decade and may even drop in the next few years.
The plateau in temperatures has been seized upon by skeptics as evidence that the threat of global warming is overblown. And some climate experts worry that it could hamper treaty negotiations and slow the progress of legislation to curb carbon dioxide emissions in the United States.