Extreme heat could put 40% of land vertebrates in peril by end of century

Study shows disastrous consequences for wildlife' if human-caused emissions push global temperatures up 4.4C

More than 40% of land vertebrates will be threatened by extreme heat by the end of the century under a high emissions scenario, with freak temperatures once regarded as rare likely to become the norm, new research warns.

Reptiles, birds, amphibians and mammals are being exposed to extreme heat events of increasing frequency, duration and intensity, as a result of human-driven global heating. This poses a substantial threat to the planet's biodiversity, a new study warns.