UN climate chief: pledges by big polluters boost Paris hopes

The U.N.'s climate chief says deadlines set by some of the world's top polluters to end greenhouse gas emissions, along with president-elect Joe Biden's pledge to take the United States back into the Paris accord, have boosted hopes of meeting the pact's ambitious goals.

source https://phys.org/news/2020-11-climate-chief-pledges-big-polluters.html