Environmental devastation from the rapid change of even the best-case scenario will be severe. Current estimates are likely to be exceeded, with global surface temperature rising 8 °C, and possibly more, by 2100, according to a 2018 study focused on cloud cover which isn’t considered in current climate models.
Global warming is accelerating. ~ Chinese atmospheric scientist Yangyang Xu et al in 2018
The faster the world hots up, the sooner humanity goes extinct. It will be a miracle of ingenuity if humans are still around in the 22nd century (after 2100). Civilization is more fragile, and hence survival more tenuous, than generally acknowledged. Living is difficult. Dying is easy.
All across the world, in every kind of environment and region known to man, increasingly dangerous weather patterns and devastating storms are abruptly putting an end to the long-running debate over whether or not climate change is real. Not only is it real, it’s here, and its effects are giving rise to a frighteningly new global phenomenon: the man-made natural disaster. ~ Barak Obama in 2006
5-6 degrees of global warming is enough to wipe out most life on the planet. ~ Italian ecologist Giovanni Strona