President Obama and other leaders backed historic new targets for tackling global warming last night in an agreement designed to pave the way for a world deal in the autumn. For the first time, America and the other seven richest economies agreed to the goal of keeping the world's average temperature from rising more than 2C (3.6F). They also agreed to cut greenhouse gas emissions by 80 per cent by 2050 as they strove for a worldwide deal at Copenhagen in December. The moves were designed to put the squeeze on the world's developing nations, most of whose leaders will join the G8 for a debate chaired by President Obama today.
President Obama and other leaders backed historic new targets for tackling global warming last night in an agreement designed to pave the way for a world deal in the autumn.
For the first time, America and the other seven richest economies agreed to the goal of keeping the world's average temperature from rising more than 2C (3.6F).
They also agreed to cut greenhouse gas emissions by 80 per cent by 2050 as they strove for a worldwide deal at Copenhagen in December.
The moves were designed to put the squeeze on the world's developing nations, most of whose leaders will join the G8 for a debate chaired by President Obama today.
