Before revision: 2019 warning on climate change and 2021 update In November 2019, a group of more than 11,000 scientists from 153 countries named climate change an "emergency" that would lead to "untold human suffering" if no big shifts in action takes place: The emergency declaration emphasized that economic growth and population growth "are among the most important drivers of increases in emissions from fossil fuel combustion" and that "we need bold and drastic transformations regarding economic and population policies".
After revision: 2019 warning on climate change and 2021 and 2022 updates In November 2019, a group of more than 11,000 scientists from 153 countries named climate change an "emergency" that would lead to "untold human suffering" if no big shifts in action takes place: The emergency declaration emphasized that economic growth and population growth "are among the most important drivers of increases in emissions from fossil fuel combustion" and that "we need bold and drastic transformations regarding economic and population policies".