Is it better to fly during the day or night to reduce global warming?
Answer:
Flying at night.
Most people fly during the day, which usually means more flights, higher traffic, and ultimately greater congestion around airports. Planes burn an enormous amount of fuel as they are circling to land.
At higher altitudes, jet engines become more efficient, plus they can often adjust this altitude to reap benefit from the jet stream depending on where they are flying. You get none of those benefits as your circling to land.
Plus, you're less likely to get caught in auto traffic when you land at night.
It's better to fly during the day so the contrails can reflect some of the sunlight.
Better to stay home or walk where your going
It doesn't really matter.
When you fly is irrelavent. It's questionable whether the emissions from jet engines are at all a significant factor anyway, so fly away. The most significant thing you could do to reduce global warming is to ask the volanoes of the world not to erupt and the lightning-related forest fires not to burn, and the sun not to vary in its output.
The jury is still out on this one. An effect was measured after 9/11reduced air traffic. But it was a one time thing and no one is convinced its significant (200% error). And unless someone wants to shut down all air traffic again, we may never know.
The dataset is just too small for a conclusion.
One thing that was found to be very significant was the effect of the reduction of dumping raw semi-burned jet fuel and exhaust into the high atmosphere. That DID help!
In these matters I suggest following the money trail.
The same people who are profiting out of causing the problems are profiting from the hysteria
I would have to say that it is cyclic
Follow the money trail
the Mega-Rich are pushing both barrows
did you hear the one about the Irish expedition to the sun?
they went at night
I only fly on days with a solar or lunar eclipse. It can be hard to live with this schedule though. It will be another six months before I can fly home.
If and when you fly it should always be by mechanical energy thereby removing the threat of pollution. Just take an old bicycle, put extended wings on your arms to flap up and down and begin pumping your way into the heavens.
Tough call...
In the daytime, the sun will be out, causing the plane to use more energy on the A/C.
At nighttime, the plane will have to use its headlights because it's not light out.
My opinion is to travel first thing in the morning, as soon as it's light out. You'd probably beat rush hour traffic, too, reducing emissions a bit on the way to the airport.
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