Each day without climate action is 'a day wasted' - UK's Attenborough

FILE PHOTO: British Prime Minister Boris Johnson and David Attenborough speak with school children during a conference about the COP26 UN Climate Summit, at the Science Museum in London, Britain February 4, 2020. Chris J Ratcliffe/Pool via REUTERS

LONDON (Reuters) - British naturalist David Attenborough warned world leaders on Tuesday it would be too late to tackle climate change if a U.N. climate summit in Scotland does not succeed, and said richer nations had a moral responsibility to act.

Britain has cast the United Nations COP26 climate conference which begins in Glasgow on Oct. 31 as the last big chance to slow rising temperatures, and hopes to persuade leaders to adopt tougher climate targets.