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- Contrails contribute 1-2% of global warming, and most of this impact can be eliminated at near-zero cost.
- Aircraft cause warming through both greenhouse gas emissions and contrails, which form cirrus clouds that trap heat.
- Contrails cause as much warming each year as all CO2 emitted by flights from 1940 to 2018.
- Using weather forecasts, satellite imagery, and data, contrails can be modeled, detected, and avoided like turbulence or storms.
- Contrails.org is a non-profit working on contrail management systems to reduce aviation's climate impact.