A Global Aviation Emissions Effort Comes to a Crossroads

IATA is warning that an international agreement designed to reduce airline emissions is in danger of collapsing when the U.N.'s aviation arm convenes for its general assembly this fall.

Environmental groups, however, question whether the carbon offset scheme, known as Corsia, has much value to begin with.

"We are very concerned, because this is the widest, biggest voluntary agreement on decarbonizing, and it has to take into account a variety of approaches to decarbonizing and also national policies," said Sebastian Mikosz, IATA's senior vice president for environment and sustainability.