That is absolutely not what a GMO is. That's what a dog or a cat or an ear of corn is.
For GMOs scientists directly splice in sections of DNA from other sources to try to create the traits they want. It's very trial and error. It's a little bit disconcerting. Especially considering we're always finding out that there's much more to genetic material than we thought, and long sections of DNA we thought didn't code for anything in fact do. Happens all the time.
My roommate is a biochemist who does research in finding novel expressions in viral RNA. RNA being in a very rough sense half as complex as DNA, but in the viri he's studying there's still large sections of RNA which we're completely clueless about.
He avoids GMO foods. So do I. I don't think they're inherently harmful, I just don't trust that they're not. It's a big leap to make to do genetic engineering like this while we're still so new in this corner of biology.
Yes, although this would be the first step to the process. Mine is nearly the second part. You still have to make sure the seeds grow into the correct product while still being able to reproduce with those changes in DNA. And what the product of breeding with those changes turns out to be. I don't nessessarily think it's great to do. But if we can make food grow faster, last longer, and taste better, then we have achieved something, as food is very garnishable especially to an ever increasing population as we see it.
As far as climate goes, somebody needs to call god and tell him to stop it with all those polluting volcanoes!!
I joke I joke
Valcanoes emit millions of tons of pollution into the atmosphere and oceans every year. If these volcanoes hardly make a drastic impression on our atmosphere that would effect you, do you really think a line of chemtrail would even remotely effect you in anyway? Nahh not a chance! Not even a thousand chemtrails in a row would even come close to a measure of the amount of chemicals and CO2 that just one volcanoe emits.
Now, the earth is heated by infared light from it's core during the night time. That is why it is hotter during a cloudy night because the clouds trap the heat in. During the day, it is cooler during a cloudy day because clouds block most of the suns rays coming in. A cloud is made when high pressure hot air is filled with water vapor, as the hot air rises and the molecules slowely condence in a low pressure atmosphere, the water vapor seeps out and causes clouds to form. When a lower pressure of cold air sweeps through a cloud it drags down and pushes the water drops together causing rain from gravity and the weight of the droplets. Sometimes you get the stinging rain which is from a very low pressure atmosphere really pushing down the water vapor. Cold air sinks because it is more dense, hot air rises. The cold air expands like a baloon when it gets to hotter temperatures and thus rises again in a cycle. Low pressure is wind, that's why its a bit cooler when you feel a nice breeze. The reason why you don't get a ton of rain in areas is the lack of water vapor carried by heat molecules rising.
So, by making clouds with other chemicals as such a "chemtrail" it really would not effect us because the chemicals would scatter in the atmosphere from lower pressure currents. The weight of the chemicals would cause different embalances and scatter, thus we would not experience the effects of the compound as a whole, some would float along high in the atmosphere, some would sink to a certain level, and only the real heavy strong compounds would make it to our level, which would be far a few between, so you aren't even most likely going to be breathing such compounds as they are extremely scarce.
Chemtrails are not large enough to make an impact on our atmosphere. If a volcanoe has a hard time changing weather patterns, only for a short period of time (generally) not massive ones, than how could there even be a valid argument that a chemtrail would make an impact on us humans and our climate? Changing climate and weather, with all the variables of wind patterns and compounds in the air, would be an extremely difficult task. Making a cloud is one thing. Making hundreds of millions of them whenever you please to alter temperatures and percipitation is much harder than you think.