Okay, so let me use a metaphor: you have an outdoor plant, that needs to be watered only every once in a while, it adapted to the surroundings and the climate, and the rain itself is sufficient for it to grow and stay healthy. Sometimes it rains more, sometimes less, but overall the plant can handle the level of hydration based on the years of evolution. Now, suddenly, in scope of several years, which looking at the pace of evolution is less than a blink of an eye, rains are getting more intense, there is more water evaporating, because some “water reservoirs” near it have been exposed after being almost always underneath the ground. Would that plant still survive? It needs water to live, but too sudden change in the amount will led to its death. Now, the reservoirs of water I’m referring to are fossil fuels, emitting CO2, which usually wouldn’t be there. CO2 is not a pollutant, just as water is not a killer. But CO2 of “external” origin is killing the planet, just as “external” water would kill the plant.