It has never been as hot on earth as it is this year: globally, the summer of 2023 was by far the warmest since records began in 1940. The rising temperatures are already having devastating consequences – including for human health. In the current one Lancet Countdown on Health and Climate Changewhich was published on November 14, 2023, 114 experts from 52 institutions and UN organizations show how massive the dangers of hunger, heat and infectious diseases through the Climate change have increased in recent years. And they calculate what will happen if global warming is not stopped and the 1.5 degree target set in the Paris Climate Agreement is not achieved.