The 2015 Paris Agreement commits countries to limit the global average temperature rise to well below 2°C above pre-industrial levels, and to aim for 1.5°C. But what is the difference between 1.5°C and 2°C of warming?
Climate change opponents plan to stage a hunger strike to demand a meeting with U.S. Congressional leader Nancy Pelosi, they said on Tuesday, in the political battle over global warming.
