President Biden’s summit meeting on climate change ended April 23 with a promise to reduce U.S. dependence on fossil fuels and help other countries do the same, marking a significant shift in climate policy. What must happen next and how quickly? Do you have reason to hope? (Read: Humanity’s greatest ally against climate change is the Earth itself, Washington Post, April 22, 2021) [Photo: "Forest of Light" by Ice Blink, YWP]