‘We are damned fools’: scientist who sounded climate alarm in 80s warns of worse to come

James Hansen, who testified to Congress on global heating in 1988, says world is approaching a new climate frontier'

The world is shifting towards a superheated climate not seen in the past 1m years, prior to human existence, because we are damned fools" for not acting upon warnings over the climate crisis, according to James Hansen, the US scientist who alerted the world to the greenhouse effect in the 1980s.

Hansen, whose testimony to the US Senate in 1988 is cited as the first high-profile revelation of global heating, warned in a statement with two other scientists that the world was moving towards a new climate frontier" with temperatures higher than at any point over the past million years, bringing impacts such as stronger storms, heatwaves and droughts.