@BillGates: Some people think we have all the clean-energy sources we need to stop climate change. But we don’t. As I wrote earlier this year, the world needs to be working on lots of solutions to stop climate change. https://t.co/I2wylMHEJE

http://twitter.com/BillGates

Some people think we have all the clean-energy sources we need to stop climate change. But we don’t. As I wrote earlier this year, the world needs to be working on lots of solutions to stop climate change. https://t.co/I2wylMHEJE

— Bill Gates (@BillGates) December 30, 2018