The United Nations’ top climate chief, Patricia Espinosa, called on the world’s richest countries to fulfill their climate financing goals, as global leaders gathered for a virtual climate summit hosted by the White House.
Saying the world must "overcome the existential crisis of our time," U.S. President Joe Biden announced a new goal of cutting U.S. greenhouse gas pollution by 50-52% by 2030 as he kicked off a virtual global summit on climate change with dozens of other world leaders.
