Bob, the chemtrailing planes I watch overhead here aren't flying at 50 000 ft, they're flying at 1000-2000 ft, and very small planes sometimes at only a few hundred feet. There's no point arguing the toss on contrails v. chemtrails. If you've stood under both for any length of time, their characteristics are visibly very different.
There is stuff going on in the air, at ground level, and in the water. It's not an 'either/or', from my pov, and there are different agendas in play, some of which may be benign in overall intent, as blufire points out, and some of which are not. Same as with the planetary climate changes - mostly it is part of a change going on at a larger level, affecting other planets in the solar system, not only Earth. Plus there are human actions, such as massive deforestation, that add their contributions to an unstable climate and biosphere.
If you only think 'one or the other', you're not going to get a complete picture of the multiple layers involved in what is going on.
People get into emotional reactions to all this, if they believe themselves powerless. If you understand the interweaving of energies and consciousness, everything can be transformed, in my experience.