A study predicts a mass extinction of mammals in 250 million years due to extreme heat from the formation of a supercontinent. The research highlights the lethal combination of a hotter sun, increased CO2, and continental effects, underscoring the importance of landmass layouts in evaluating the hab
, presents the first-ever supercomputer climate models of the distant future and demonstrates how climate extremes will dramatically intensify when the world’s continents eventually merge to form one hot, dry and largely uninhabitable supercontinent.The findings project how these high temperatures are set to further increase, as the sun becomes brighter, emitting more energy and warming the Earth.
While mammals have evolved to lower their cold temperature survivable limit, their upper-temperature tolerance has generally remained constant. This makes exposure to prolonged excessive heat much harder to overcome and the climate simulations, if realized, would ultimately prove unsurvivable.University of Bristol
Although human-induced climate change and global warming is likely to be a growing cause of heat stress and mortality in some regions, research suggests the planet should largely remain habitable until this seismic landmass change in the deep future. But when the supercontinent forms, findings indicate only somewhere between 8% and 16% of land would be habitable for mammals.Co-author Dr.
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