“The 50% target would nearly double America’s previous commitment and help the Biden administration prod other countries for ambitious emissions cuts as well. The proposal would require dramatic changes in the power and transportation sectors, including significant increases in renewable energy such as wind and solar power and steep cuts in emissions from fossil fuels.” Ahead of his climate summit, Biden to pledge halving greenhouse gases by 2030.

+ Forty world leaders have been invited to the virtual summit, and the guest list includes Chinese President Xi Jinping.

+ “Much will hinge upon cooperation between China, the world’s worst producer of planet-heating emissions, and the US, historically the worst polluter.” And then there’s the not small matter of America getting its credibility back after four years of Trump off gassing.