There's a small chance of very high warming even with moderate future emissions, according to a computer model exploring what could happen in the next thousand years ...

Earth could warm by a whopping 7°C (12.6°F) by 2200 even if CO2 ... keep global temperature increases below 2.7°F (1.5°C). But according to the team, the window for limiting global warming ...

Atmospheric carbon dioxide ... the first with a global average temperature 1.5 degrees Celsius above pre-industrial levels. "While a single year above 1.5 degrees Celsius of warming does not ...