Travelers bothered by their flight’s pollution can pay to reduce it elsewhere. Do offsets work?

Air travel results in a lot of planet-warming emissions, but it's also sometimes necessary. That's a quandary for people who ...

Some air travelers bothered by their flight's emissions turn to carbon offsets. Do they work?

The idea is that the program or action offsets your pollutive action. You drive a car that pollutes a certain amount, you buy ...