‘Soon the world will be unrecognisable’: is it still possible to prevent total climate meltdown?

Record high temperatures and extreme weather events are being recorded around the world. Photograph: Ian Logan/Getty Images
Record high temperatures and extreme weather events are being recorded around the world. Photograph: Ian Logan/Getty Images

Blistering heatwaves are just the start. We must accept how bad things are before we can head off global catastrophe, according to a leading UK scientist