CO2 is an invisible gas. Without it our planet would be an ice encrusted ball hurtling endlessly and lifelessly on-and-on through space forever. This is because it is a greenhouse gas that partially traps heat. With too much of it released by burning fossil fuels, however, we’ve created a situation where all life on Earth faces a future of ever increasing hardship.
Some people actually desire this because they wish to hasten the Second Coming. Others either don’t know what they believe or are too full of despair to care. Meanwhile, the rest of us hope to see mankind evolve into a life form worthy of continued survival along with the rest of the flora and fauna of God’s Creation.