Wonder if the green brigade contemplate this on their way to major conferences around the globe

[prospector]

https://davidsuzuki.org/what-you-can-do ... te-change/

[Slasher]

CO2 intensity of passenger transport via IPCC

Once I saw that I didn't bother to read any further.

[Pontius Navigator]

Well one solution is to fly outside the persistent contrail levels.

Or, by night contrails trap the same amount of heat radiation from earth as by day. But by day the contrails reflect solar radiation .

Aircraft taking off at night annoy people.

People like seeing aircraft.

The solution is obvious. Day flying only.

[Fox3WheresMyBanana]

You miss their points, it's always you who is at fault, and you who must pay to fix it. Just hand over all your cash and go live in a cardboard box, there's a good chap.

[Pontius Navigator]

Have you noticed the Chinese make the best cardboard boxes in the planet. The better the box the cheaper the knock off content.

[Rwy in Sight]

I am always jealous of all those nice places the eco agreements are signed and activists are too happy to fly there.