AMSTERDAM - The top UN climate official says that though the Copenhagen global warming summit went sour countries should avoid blaming each other and get down to work on a better deal next year.

Yvo de Boer says the 193-nation conference that ended last weekend outlined a way forward for negotiators and succeeded in mobilizing emergency funds for poor nations to prepare for climate change.

President Barack Obama helped broker a limited accord in the last hours. But de Boer says the achievements were set aside amid acrimony over the failure to reach a legally binding deal.

De Boer told Britain's BBC television Wednesday that "things may have gone sour in Copenhagen," but a broader agreement won't be achieved "by pointing fingers at each other."