Can We Plant 20 Million Trees for 2020? The Math Says Yes

There's a lot of power in a rough estimate. If you’re trying to figure out whether something is worth doing, you could really go deep into the weeds trying to capture all the costs and benefits. But here’s the thing: Usually you don’t need an exact answer in order to make the right decision. For example, say you’re having a big party, a hundred people, and you want to make special decorated cupcakes.

Learn about your ad choices: dovetail.prx.org/ad-choices