It is not too late to avert the climate crisis from becoming even more deadly – but the window is closing. Across western Europe high temperature records are being obliterated; some had been set during the heatwave in 2003 that left tens of thousands dead. Raging wildfires are displacing thousands of people, one of the many compounding impacts of the climate crisis. This heatwave is another reminder that we have already reached unsafe levels of global heating. As our planet warms, heatwaves will become more frequent and more intense. In fact, we may look back on these years as some of the coolest, compared with what will come if we do not act now. Human life will encounter life-threatening impacts with increasing frequency and mounting consequences. Countless scientific reports have been conveying this reality for decades.