The International Energy Agency (IEA) on Monday said if the world achieves a 30 per cent cut in methane emissions from human activity by 2030, it would have a similar impact on global warming as switching all world’s cars, trucks, ships and planes — the entire global transport sector — over to net zero emissions technologies.

After two weeks of intensive discussions on how to step up international efforts to tackle global warming, the UN Climate Change Conference (COP26) in Glasgow concluded on Saturday night.