Companies Ditch Junk Carbon Offsets While New Buyers Step In

Delta Airlines Inc. has for the past few years been among the biggest corporate buyers of carbon offsets. That demand — from airlines, energy companies, automakers and logistics firms — drove forecasts of a market worth hundreds of billions of dollars in the coming years.

But after strong pushback from experts, Delta is now among a growing list of major companies that have ended purchases of these cheap credits. Alphabet Inc.’s Google and EasyJet Plc have recently joined in the rejection of what had been an enormously popular approach to sustainability. Many of these companies are now focused on the ...