The US has has another election this year. Reelecting Biden, and giving him a Congress that will actually pass meaningful climate legislation is part of what we need.
The reality is that the kind of change we need won't be the work of a single Presidential term or session of Congress, or any one nation. Biden did what he could with the congress he had, where the Democrats had a majority in the Senate only by virtue of the Vice President being able to break ties, and even then, a couple Democrats (Manchin, Sinema) being bought off by the oil industry.