G20 leaders offer few commitments on climate, agree on 1.5 degree target

Leaders of the Group of 20 major economies agreed on a final statement on Sunday that urges "meaningful and effective" action to limit global warming at 1.5 degrees Celsius but offers few concrete commitments.

The result of days of tough negotiation among diplomats leaves huge work to be done at a broader United Nations climate summit in Scotland, to where most of the G20 leaders will fly directly from Rome.

The G20 bloc, which includes Brazil, China, India, Germany and the United States, accounts for an estimated 80% of global greenhouse gas emissions.