Bill Gates has been trying to support plans for geo-engineering which include releasing chemicals into the air to fight global warming supposedly.
I think most of what people see and call chemtrails are really just normal contrails that persist for a while due to atmospheric conditions, but I do think there's some funny business going on at some level with geoengineering.
Yes Bill Gates payed for some research that proposed a way to stop Hurricanes from forming, I don't think it included an international conspiracy to poison people. Also there is a form of climate engineering that has been going on for decades- cloud seeding with silver iodide and other chemicals. It's not very toxic but there are some concerns, and they are out there in the open, no conspiracy.
If a plain discharges large amount of toxic chemicals don't you think independent technicians could measure them ?
How about the claim that they spread "viruses" how kookoo is that ? Wouldn't it be easier to spread these from the ground ? How could the virus survive being ejected inside a hot toxic fume ? And how come there is no viral epidemic going on in Stockholm ?
There are other cases of deliberate "poisoning" like some countries deliberately add fluoride to the drinking water, because they think their subjects are too stupid to manage their own dental hygiene so "for their own good" it's better to poisin them just a little bit with fluoride. But again- this is an open public policy, not a conspiracy.