Contrails cause 1-2% of global warming by trapping heat in the atmosphere. Contrails.org, a non-profit research organization, develops systems to detect and avoid contrails using weather data and satellite imagery, enabling the aviation industry to reduce its climate impact at minimal cost.
A new study finds that climate feedback loops from thawing permafrost, wildfires, and warming wetlands could amplify global warming by 20-30% by century's end, adding 0.2-0.4°C to global temperatures. These emissions from natural sources are largely missing from current climate models, meaning projections underestimate future warming and overestimate remaining carbon budgets.