Contrails.org — Contrail avoidance for the climateWe can drastically cut aviation's climate impact.

The Problem<br>Contrails cause 1-2%<br>of global warming.

We can eliminate most of that at near-zero cost.

Aircraft cause warming in two ways: greenhouse gas emissions and contrails. That's because contrails (aircraft condensation trails) often grow into cirrus clouds that trap heat in the lower atmosphere and significantly add to global warming. Recent estimates show that contrails cause about the same amount of warming each year as all the CO₂ emitted by all flights from 1940 to 2018.<br>Learn More

The Solution<br>Adjusting 5% of flights could avoid up to 80% of contrail warming.

Using weather forecasts, satellite imagery and other data, we can model, detect, and avoid contrails just like turbulence, icing, or storms. We are advancing science and building contrail management systems that can be used by the aviation industry to significantly reduce their climate impact, immediately.<br>Learn More

Using weather forecasts, satellite imagery and other data, we can model, detect, and avoid contrails just like turbulence, icing, or storms. We are advancing science and building contrail management systems that can be used by the aviation industry to significantly reduce their climate impact, immediately.<br>Learn More

Who We Are

Contrails.org is a non-profit applied research organization dedicated to reducing aviation's climate impact through contrail management.

Originating from a small working group at Breakthrough Energy, Contrails.org brings together leading scientists, technologists, and industry experts working to make contrail management a practical reality.<br>Learn More

Explore the contrails map<br>Our contrail map shows you how contrail-induced cirrus clouds are warming the planet. Learn whether your recent flight created harmful contrails, see how small changes to flight paths can prevent contrails, and more.Learn More<br>Contrails in the press

Explore the contrails map<br>Our contrail map shows you how contrail-induced cirrus clouds are warming the planet. Learn whether your recent flight created harmful contrails, see how small changes to flight paths can prevent contrails, and more.Learn More

Contrails in the press