elevation vs altitude. Temperature is measured with a sensor on a pole, perhaps two metres above the ground, which is not a particularly significant amount at 2000m above sea level.
Why marijuana should not be legalized? It's because it can harm the young people who are the hope and future of human kind. Marijuana may affect the development of the brain if smoked at a young age. This is not only harming the future of young people, but also the future of our country and the world.
1 CBD found naturally in hemp is also legal in the United States (like all other hemp imports), while CBD from marijuana is federally illegal in the United States, though state-by-state legalization is occurring rapidly.  Cannabidiol can also be produced synthetically in a laboratory.