World leaders talk climate change at economic summit

There's been a lot of climate change talk at the World Economic Forum in Davos, Switzerland, this week and much of it has centered on the United States.

Noting the President Obama did not specifically mention climate change in his State of the Union address this week, the two world leaders hosting the forum called on the United States Thursday to take action on climate change.

AFP reports: "Presidents Felipe Calderon of Mexico and Jacob Zuma of South Africa, hosts of global climate change summits, on Thursday urged the United States to take stronger action on the issue."

"The world needs action from the United States," Calderon said.

But climate change legislation is all but dead in the United States for the forseeable future. Instead, Obama has floated the idea of reducing the country's emissions by requiring that 80 percent of the country's electricity come from "clean energy" sources like wind, nuclear and natural gas by 2035.

At the Davos summit, European Union Climate Commissioner Connie Hedegaard said that, lacking strong policy, U.S. businesses must act to reduce their greenhouse gas emissions.

"The solutions have to come from business," she said, according to The Associated Press. "They will have to come up with alternative ways of doing things."