This is an easily debunked fossil-fuel industry propaganda talking point.
You either work in this industry and are being purposefully disingenuous, or you're carrying water for billionaires that will be dead from old age by the time the consequences of their lies are made manifest.
TL;DW: Yes, CO2 levels were higher hundreds of millions of years ago, but the layout of the continents was different and the Sun had lower power output, so it worked out. If CO2 levels reached the same point now, 80% of the land surface would turn to desert and most higher forms of life would be wiped out by heat waves. Awesome! Let's aim of that then because some Shell Oil executive wants his bonus.
You either work in this industry and are being purposefully disingenuous, or you're carrying water for billionaires that will be dead from old age by the time the consequences of their lies are made manifest.
See: https://www.youtube.com/watch?v=ZqA4bDVmBB8
TL;DW: Yes, CO2 levels were higher hundreds of millions of years ago, but the layout of the continents was different and the Sun had lower power output, so it worked out. If CO2 levels reached the same point now, 80% of the land surface would turn to desert and most higher forms of life would be wiped out by heat waves. Awesome! Let's aim of that then because some Shell Oil executive wants his bonus.