Add Yahoo as a preferred source to see more of our stories on Google. Carbon offsets have existed for decades, and the size of the voluntary carbon market has ballooned to about $2 billion. Many ...

Carbon credits could eventually play an important role in fighting climate change, but right now a few dollars’ worth won’t change much. By Maggie Astor Carbon offset programs have become ubiquitous.

So you’re booking your flight, and just when you’re about to check out, the airline asks if you’d like to pay a little something to offset your share of the flight’s pollution. Or, maybe you’re an ...

Carbon offsets have existed for decades, and the size of the voluntary carbon market has ballooned to about $2 billion. Many countries and countless companies, including giants like Amazon and FedEx, ...