And Oxfam spokesman Antonio Hill said : `` Today 17 countries , responsible for more than 80 percent of the world 's emissions , agreed for the first time that it 'd be nice to take the road which stops the planet heating up by more than 2 degrees . ` Italy President Paula Newton : Leaders will work together on climate change . At U.S. summit , leaders pledge to slash greenhouse gas emissions . Leaders pledge aim to achieve a more than 80 percent reduction in global emissions by Friday . Meeting takes place in heart of quake zone where about 300 people died .
Italy President Paula Newton : Leaders will work together on climate change . At U.S. summit , leaders pledge to slash greenhouse gas emissions . Leaders pledge aim to achieve a more than 80 percent reduction in global emissions by Friday . Meeting takes place in heart of quake zone where about 300 people died .