President Biden has pledged to quadruple the annual U.S. contribution to international climate aid to $11 billion. He has a long, tough road to get there.

Climate activists have never liked Trump-appointed World Bank President David Malpass. But this week, his comments on climate change fueled calls for President Biden to make a change.

Last month, the Muisyo family turned on the lights for the first time thanks to climate financing from rich countries. But the fund is falling short of its $100 billion goal to help poor countries.