大象传媒

If temperatures rise by 4c by the end of the century, that could cost $600 trillion of damage, hundreds of millions of climate refugees, deadly heatwaves in the Middle East and India, plus the loss of the icecaps, says a journalist.

David Wallace-Wells, who wrote The Uninhabitable Earth, spoke to Politics Live presenter Jo Coburn, who asked him why scientists were not saying the same.

On the panel were MPs Nicky Morgan and Lisa Nandy, with journalists Fraser Nelson and Jennifer Williams.