In a sudden reversal, the United States accepted changes proposed by developing nations to a document launching talks for a new global warming pact by 2009, clearing the way for its adoption.

The U.S. delegation earlier had rejected the changes proposed by poor countries that their need for technological help from rich nations and other issues receive greater recognition in the document launching the negotiations.

But after delegates criticized the U.S. stand and urged a reconsideration, the U.S. delegation relented.

"I think we have come a long way here," said Paula Dobriansky, head of the American delegation. "In this, the United States is very committed to this effort and just wants to really ensure we all act together. We will go forward and join consensus."

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