Climate change target of 2C is ‘dead’, says renowned climate scientist

Prof James Hansen says pace of global heating has been significantly underestimated, though other scientists disagree

The pace of global heating has been significantly underestimated, according to renowned climate scientist Prof James Hansen, who said the international 2C target is dead".

A new analysis by Hansen and colleagues concludes that both the impact of recent cuts in sun-blocking shipping pollution, which has raised temperatures, and the sensitivity of the climate to increasing fossil fuels emissions are greater than thought.