A previous version of this article incorrectly said the exchange rate for SolarCoins is around 250 to a dollar. The exchange rate is 22 SolarCoins to the dollar.
The climate crisis is spawning weird ideas to fix it. They might be all we have.
Woolly mammoths and cow toilets: Desperate times can make even the longest shots seem worth a try
Perspective by David Appell
October 8, 2021 at 6:00 a.m. EDT