Is it worth spending hundreds of billions of dollars to fight global warming?

Yes, we should fight poltion and make this planet a cleaner place, but if we take a look at the history of the planets temperature it had its lows and its highs and we are just getting up on the high bit. I have read somewhere that humans have increased the CO2 (and other greenhouse gases) production for about 1%... so yeah clean the planet make other souces of energy and don't worry about global warming it had always been a thing.