Answer: When CO2 is present in the atmosphere it causes the Earth's natural greenhouse effect to take place and warm the earth. When you continue to additional CO2 then you are supercharging this effect. This does help plants that are on land grow much better however, the excess CO2 is consumed by the ocean, making it more acidic and dangerous for marine life. Aside from the effects it has on our biosphere, the notorious greenhouse gas is absolutely required to trap heat and warm our planet.
Explanation: I lowk tried my best so if u dont get it then go F urself or sum, u still a freshie lil bro u not like me