China and the United States showed how global summits are an arena for great powers to compete, with implications for the war in Ukraine and Asia’s future.
The deal is the most ambitious effort yet by the United States and European countries to coax a developing nation into abandoning the dirtiest of the fossil fuels.
As global warming delivers cascading weather disasters, leaders at U.N. climate talks in Egypt are increasingly calling for changes to a system that traps developing nations in debt.