Nasa: Earth is warming at a pace 'unprecedented in 1,000 years'

Records of temperature that go back far further than 1800s suggest warming of recent decades is out of step with any period over the past millennium
The planet is warming at a pace not experienced within the past 1,000 years, at least, making it “very unlikely” that the world will stay within a crucial temperature limit agreed by nations just last year, according to Nasa’s top climate scientist.This year has already seen scorching heat around the world, with the average global