Italy President Joanne Green : Leaders will work together on climate change . At Italy summit , leaders pledge to slash greenhouse gas emissions . Leaders pledge aim to achieve a 80 percent reduction in global emissions by December . The Forum nations account for 80 percent of the world 's greenhouse gas emissions . Meeting takes place in heart of quake zone where 192 people died .
Italy President Joanne Green : Leaders will work together on climate change . At Italy summit , leaders pledge to slash greenhouse gas emissions . Leaders pledge aim to achieve a 80 percent reduction in global emissions by December . Meeting takes place in heart of quake zone where 192 people died .