Global Warming and Climate Change} Is mankind good for the planet or bad?

The planet does not care if mankind is here or not! It is simply a collection of material leftover from whatever caused the solar system to form and then come together by gravity and vast amounts of time for life to emerge. Mankind is only one of the billions of lifeforms that have called this planet home. Very seldom do the lifeforms that have evolved on this planet make any major changes in other lifeforms, even though every lifeform has to be able to work in conjunction with other lifeforms. The only major change that I know about was when plants, and single-cell, and multi-cell life started producing oxygen as a waste by-product, which ended up causing the greatest extinction of that very life that the planet has ever seen. But without that cause and effort, life, as we know it, could never have started. Let's talk a little about extinctions, and what causes them, the easiest to understand is the giant asteroids, that has caused several major and minor extinction on the planet, and were responsible for there not being any life on the planet for the first billion or so years, due to the constant bombardment from space. Only when the planet started to cool down and create more stable conditions could life find a way! Life can work with extremes, be it very hot or very cold, what it has more problems with is when it has both extremes, very hot and then very cold, it takes evolution and lots of time, for something to be able to adapt to both. Extinction can also be both global and more localized due to Super Volcanoes or volcanic events over very long periods, such as the ones that lasted for perhaps one to two million years, in what is now known as the Siberian Traps, around 250 million years ago. Earthquakes, even major ones, have never been shown to cause any extinction events, perhaps some localized deaths due to tsunamis, can cause an isolated population to go extinct, but not whole populations. Plate tectonics has changed evolutionary pathways, both by the separation of landmasses, and their movements into changing climates, which may have been responsible for some local population extinctions over short event timeframes, but were probably more responsible for more divergent populations! So if we go back in time, the atmospheric make-up has had some of the most profound effects on life on the planet. What plants could grow on this planet has been changing from the very earliest timeframe that we can go back to. This is because plant life has always been the leading cause of the gases that are present in the atmosphere, yes volcanic events can cause gas concentrations to change but almost always to a greater concentration of carbon dioxide in the atmosphere, but with the slow cooling of the planet those events have become less common (thankfully but also problematically for maintaining the levels of carbon dioxide in the atmosphere). So the next and possibly last extinction is only a few thousand years away if mankind does not begin to understand the relationship that arid and semi-arid area of the planet has on the temperature regulation ability of the planet. And without that understanding, the wrong or incorrect interpretation will cause long-term problems that should have been addressed in a different manner than is now being recommended! Please contact me at <daniel.kadavy212@gmail.com> or I can be reached in the USA at 402-890-7946 Thank you, Dan