Modern fuel-efficient jets can cause more warming than older planes

Passenger planes and private jets that fly higher can create longer-lasting contrails, meaning their contribution to global warming has been underestimated

​Passenger planes and private jets that fly higher can create longer-lasting contrails, meaning their contribution to global warming has been underestimated Passenger planes and private jets that fly higher can create longer-lasting contrails, meaning their contribution to global warming has been underestimated