The fuel consumption feels like the bigger problem since contrails last for hours vs co2 that lasts damn near forever.
They are roughly equal problems at the moment.
> 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.
They are roughly equal problems at the moment.
> 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.