> [...] The contrail persists and spreads into full-fledged contrail cirrus.
> Decades of work has shown these clouds should, on the whole, cause warming. It’s a simple effect: The wispy veils of ice let most of the Sun’s energy pass through. But like CO2, they are very effective at absorbing infrared heat emitted by Earth’s surface. The effect is biggest at night, when the contrail clouds reflect no sunlight and only trap heat.
In the few days after 9/11, when all commercial flights in the US were grounded, US weather data clearly showed the effects of contrail-free skies. Google easily finds old research articles on that.
The article makes no mention of the de facto by-far-largest experiment ever conducted in this area.
Is the post-9/11 grounding now "too hot to touch" for culture wars reasons? Is Science magazine circling the Scientific American drain?
bell-cot•2mo ago
> Decades of work has shown these clouds should, on the whole, cause warming. It’s a simple effect: The wispy veils of ice let most of the Sun’s energy pass through. But like CO2, they are very effective at absorbing infrared heat emitted by Earth’s surface. The effect is biggest at night, when the contrail clouds reflect no sunlight and only trap heat.
In the few days after 9/11, when all commercial flights in the US were grounded, US weather data clearly showed the effects of contrail-free skies. Google easily finds old research articles on that.
The article makes no mention of the de facto by-far-largest experiment ever conducted in this area.
Is the post-9/11 grounding now "too hot to touch" for culture wars reasons? Is Science magazine circling the Scientific American drain?
Anyone familiar with this?