The record-shattering heatwaves, wildfires and floods destroying lives in the US, Europe, India, China and beyond in 2023 have raised an alarming question: have humanity’s relentless carbon emissions finally pushed the climate crisis into a new and accelerating phase of destruction?
The issue is being strongly debated, with accusations of doom-mongering being countered with charges of complacency. The answer matters: how bad is it, and how can we limit the damage? To find out, the Guardian asked 45 leading climate scientists from around the world. We also asked the equally vital question of whether extreme weather events were hitting people faster and harder than expected.