Most of us first spot them as children—the white lines in the blue sky that are the telltale sign of a flight overhead. Contrails are an instant visual reminder of air travel, and a source of much ...

The head of the Environmental Protection Agency on Thursday appeared to nod to conspiracy theories that have swirled around recent extreme weather events, directing people to the agency’s website for ...

You've definitely seen them in the sky before, but have you ever wondered how plane contrails form? Typically it's a fairly simple process of condensation from jet engines, but sometimes it's just the ...

Those white vapor trails crisscrossing the sky carry a hidden climate price tag comparable to the damage from jet fuel itself. Research from Chalmers University of Technology reveals that aviation ...

Aviation's climate impact is partly due to contrails—condensation that a plane streaks across the sky when it flies through icy and humid layers of the atmosphere. Contrails trap heat that radiates ...

Some contrails can contribute to global warming. Contrails—pure ice clouds (“cirrus”) that form from aircraft exhaust under specific cold conditions—can trap heat in the atmosphere, sometimes creating ...

Aviation's climate impact extends beyond carbon dioxide emissions. A new international study, involving researchers from Chalmers University of Technology and the University of Gothenburg, reveals ...

Contrails – short for condensation trails – are linear clouds made up of ice crystals that form behind jet aircraft at high altitudes. These artificial cirrus clouds are formed when hot and moist ...

The challenge of addressing aviation’s non-carbon dioxide emissions is receiving greater attention, with the climatic impact associated with tell-tale signs in the sky coming under increased study.

Contrails conjure a sense of something overwhelming and ineffable, as terrifying as it is beautiful. By Kate Folk I spend most days working from home, in my apartment in San Francisco’s Richmond ...

Contrails in the blue sky remind us of daily air traffic—and its impact on the climate. However, the effect of contrails on the climate is still only partially understood. It is assumed that they have ...