What is global warming?

13 January 2020

Global warming refers to the recent (pre-industrial to present) temperature increase of the earth’s surface and lower atmosphere. In order to keep the negative consequences of global warming under control, the average global temperature rise should be limited to less than 2˚C relative to the pre-industrial level – as was agreed at the United Nations Framework Conference on Climate Change (UNFCCC). Beyond that limit, climate change becomes catastrophic and irreversible.