A gov't report on contrail effects on planes

www.db.arm.gov...

So, what? If you provide a link, the least you can do for your readers is provide some information, comment, opinion, something to get the debate going. Tell us why you thought it would be an interesting topic.

As it stands, it is possible that you will get no response.

It's not even about the effects on planes. heh. It's about the effects of planes on the environment.

Time for a good threadlocking.