Mexican President Felipe Calderon on Friday called on business and political leaders to make concerted efforts for a "robust" agreement on climate change.

Speaking at the World Economic Forum annual meeting in Davos, Calderon said world leaders need to avoid the "mistakes" in Copenhagen, where a U.N. conference last year only reached limited agreement on tackling global warming.

The accord in Copenhagen, the Danish captial, "was not enough, nobody was satisfied with it," said Calderon, whose country will host the 2010 U.N. climate change conference from Nov. 29 to Dec. 10.

He said he would push for "a robust, substantial and comprehensive agreement" at the new conference.

But Calderon acknowleded that expectations for the Mexican conference was low, mainly because of the lack of a financing mechanism for clear energy projects.

"If we can find an economic mechanism... we will be on track," he said.

He called on rich countries and enterprises to help the development of clean energy projects in developing countries so that they can realize low-carbon growth.