Hi there, I've spent a year and 1/3rd covering the story of Geoengineering and Chemtrails.
I just finished writing an article that you may enjoy-- which describes in detail what chemtrails are REALLY designed to do. This is far more than just a way to end "Global Warming"... they are using the skies as a way to electromagnetize them where they can send directed energy weapons to unsuspecting targets-- as well as use mind control methods on them.
This sounds really far out -- until you read the rense.com article which is called "What Chemtrails Really Are".
My hub page is at: http://hubpages.com/technology/So-You-Thought-Tin-...
It has taken over a year and 1/3rd to arrive at the information that I presented. I hope you enjoy it and that it answers more of your questions on the topic of stratospheric engineering.
Hey, if they really wanted to improve global warming-- they would stop using the Tesla concepts like the Ionospheric Heaters-- like HAARP Technology (2 in Alaska, one in Puerto Rico), one in China, several in Russia, and one in Norway... along with over 72 ionospheric heaters at the South Pole. Check out the story on HAARP. The best video on this was Jessie Ventura's show... you can google HAARP/Jessie Ventura Full Length and watch the show.
This should give you the broader picture of what they are actually "up to"!
They can't possibly blame Global Warming on CO2 emissions by people and animals--- if they don't also look at the fact that they are actually purposely heating our atmosphere -- each and every time they use this type of technology.
Check it out-- this will definitely answer your question. ; )