Even if we completely stop all manmade CO2 emissions right now, there still is too much CO2 in the atmosphere already. Actually removing the CO2 from the air in some way will be necessary if we want to stop global warming from getting even worse.
Stopping all human CO2 emissions stops global warming (on average, bad valvano you years will make it worse that year), and reverses it. Plants convert more CO2 than gets converted back by a small amount every year.
You just want something that doesn't need a million years to get back to normal.
