G8 leaders have reached agreement among themselves on reducing greenhouse gases but insist developing countries must play their part.
The statement, from the world’s richest nations meeting in Japan, said they would work to at least halve emissions by 2050 and agreed on the need for interim targets, yet to be specified, ahead of that deadline.
It appears to be a step forward from their summit last year when they agreed only to “seriously consider” the mid-century goal.
There are still divisions within the group and differences with developing nations, who insist countries like the US, should lead the way. The G8 says around 200 countries involved in UN climate talks should also adopt the 2050 target.
Environmentals have been among an army of dispirate groups protesting over the summit.
They were kept at a safe distance throughout the course of the talks in the remote tourist resort in northern Japan. It ensured there was no repeat of trouble seen at previous G8 gatherings.