A Big Climate Problem With Few Easy Solutions: Planes

The airline industry might not be able to reduce greenhouse gas emissions for decades because most solutions are not yet viable.

The worst of the pandemic may be over for airlines, but the industry faces another looming crisis: an accounting over its contribution to climate change. The industry is under increasing pressure to do something to reduce and eventually eliminate emissions from travel, but it won’t be easy. Some solutions, like hydrogen fuel cells, are promising, but it’s unclear when they will be available, if ever. That leaves companies with few options: They can make tweaks to squeeze out efficiencies, wait for technology to improve or invest today to help make viable options for the future. “It’s a big crisis, it’s a pressing crisis — a lot needs to be done soon,” said Jagoda Egeland, an aviation policy expert at the International Transport Forum, a unit of the Organization for Economic Cooperation and Development. “It’s a hard-to-abate sector. It will always emit some carbon.”