"Trees are from nature. Trees can kill people when they fall in a city and hit someone, the larger the tree, the worse the damage. They damage houses and properties in general, people lose their homes because of a little wind and nature at work. It is counter productive to have trees outside of forests where they belong, so lets chop down all the trees in populated areas and replace them with something that gives a lot of oxygen like seaweed farms but can't kill someone or destroy their home. I have tried to bring this idea forward to multiple people, so far none have considered it seriously. When something is newer people don't know how to think because they aren't used to it, so they need more time to catch up to something that's older. Branches get in the way of buildings and need to be removed, it is a high maintenance plant. I bet you would think that a fire would generally be a bad thing, right? Well if there were too much oxygen and then someone lit a match, we all know what would happen. Forest fires from nature, from lightning, are natures way of protecting the planet from itself, because it lowers the amount of living trees at once. It is not prepared for human polution, and the burning of fossil fuels, smoking, automobiles, planes, so it is a flawed system, causing more harm than good. But overall nature while being nice to look at, can ruin entire families lives because they can't afford another place to live after they have settled, some may be paying off their house while they lose it then they are in debt without a place to live. Insurance companies that insure homes lose money simply because of tall, heavy trees. We need to do something, although I personally believe there are people who fear the way of human progress, so they won't do something like plant trees in the forests where they cut them down, and instead put them in populations way, to harm people."