In brief
A new study from Transport & Environment highlights the significant yet overlooked climate impact of jet contrails, urging immediate attention at the UN climate conference. While the aviation industry continues to grapple with its carbon emissions, researchers reveal that contrails—formed when jet engines emit vapor that condenses into cloud-like trails—essentially double this warming effect. With conspiracy theories surrounding contrails muddying public understanding, scientists emphasize the urgent need for clarity and consensus on this environmental issue. Current findings show simple modifications to flight paths for a small fraction of flights could lead to substantial reductions in contrail-related warming by 2040, costing less than 4 pounds per flight.
