This month's biggest climate milestones happened over one weekend. On Sunday, the U.S. Senate approved hundreds of billions of dollars in climate and clean-energy spending. Just two days before, climate cooperation between the U.S. and China — the world’s largest economies and emitters — came to an abrupt halt.

How these two turning points shake out will determine the fate of global climate goals.

The end of climate cooperation between Beijing and Washington came Friday when, in response to U.S. House Speaker Nancy Pelosi’s visit to Taiwan, China suspended climate talks. The move wrecks a dialogue that was pivotal in securing the 2015 Paris Agreement and, more recently, yielded diplomatic momentum on curbing methane at last year’s COP26 climate summit.