In reply to Crxpilot :
These are my own personal thoughts. I have nothing but my convictions to back them up. I don't want to change anyone's mind, and I do not intend to offend with my words. I apologize in advance if it comes across as inflammatory, I genuinely do not mean it to and tried to word this post appropriately.
in the 70s, there was huge fear and craziness about a coming ice age.
80s and 90s the hole in the ozone layer was going to turn the planet into a desert.
Now, massive floods and rising sea levels are the environmental disasters we need to be scared of.
In 50 years that is 5 different mass extinction possibilities, some polar opposites of the others, all decided on by the best tech available at the time. That means we really have no clue at all as far as I can tell.
I personally feel (my own opinion) that climate is cyclical, and we as a species haven't even been here very long at all on the geologic time scale to be able to make anything more than guesses as to what it will do in the future with or without our help. We certainly haven't had the monitoring technology long enough to have any concrete answers. "Well we have simulations" and simulations are programmed by people, and people are biased. (Sorry, this last sentence actually was a bit inflammatory and I don't know how to word it so it isn't)
I've always been of the opinion that the earth will be fine because it's far bigger than we are, was here long before us, and will be here long after we kill ourselves off. Frankly I think it's narcissistic as hell to say that us, barely out of caves for 60k years, can somehow completely destroy something that's been alive over 4 billion years, survived hundreds of millions of years of dinosaurs, plagues, worldwide drought, worldwide ice cover, radiation bombardment, millions of space impacts, including some that blacked out the sun for years according to geological surveys. It's cute we've grown this species wide ego that somehow we're special because we grew opposable thumbs and shed some body hair, but we've barely even been a species for a million years. On a geological time scale, we're still in diapers.
If we do somehow do enough damage, the earth will shake us off like fleas from a dog, and the next step in the evolution of life will begin, with or without us, just as it has from the beginning of time. Just like it did when the asteroid killed the dinosaurs, just like the other 5 mass extinctions I can't remember the names of that took out 90% of life on earth.
Again, these are just my opinions on the matter. It was not my intention to offend or upset, and I apologize again if it came across that way.