If you're going to troll, at least get your science right. Breathing out CO2 adds zero net CO2 to the atmosphere, because it comes from food you ate, which itself came from CO2 in the atmosphere.
The oil and gas that an individual uses to survive, on the other hand, is literally deadly. So you are at the verge of having a point: we could lower CO2 usage by killing people.
However, a much more direct and reasonable fix to the problem is to disincentive the use and production of that particular poison. There are a couple ways to do this, but I'd argue a steep carbon tax, with proceeds used for funding sequestration research and programs, is the most humane solution to the monstrous evil of carbon pollution.
I'm not trolling. I am feeding back to this person calling for outright violence their own attitude. It's attitudes like vesak's that will lead us to blood filled streets. Hate breeds hate. And eye for an eye leaving the whole world blind.
