I don't see why it seems so ridiculous to people that some organization may be spraying the skies to assist with what has been called global warming. Whether it's happening or not I don't think a person deserves the "tinfoil hat" comment if they speculate that there may already be geoengineering efforts happening.
1) Man has been using planes to disperse chemicals for a very long time whether to induce precipitation, spray for mosquitoes or control fires.
2) If people in world government truly believe we are in the midst of a climate crisis why wouldn't they try to do something about it?
3) Governments do lots of things without disclosing them to the citizenry.
4) There are many patents viewable online which outline the exact procedures people report seeing in the skies and in soil samples.
5) There is an official pentagon report named "Owning the weather by 2025"..
6) Weather can either be an incredible weapon or a great asset to farming and lifestyle
7) China and Russia reportedly frequently control weather to alter conditions in their largest cities.. Russia tries to keep too much snow from falling in Moscow because it slows down government.
So which part of the chemtrail idea is so far fetched? To me, it doesn't take much of a stretch of the imagination to consider the possibility. Whether it's really occurring or not I can't say for sure. Here is a pic of a tanker spraying chemicals to control a fire. That's not absurd is it?