Your argument is based on an assumption that CO2 is a pollutant that is causing global warming. This theory is not proved and hundreds of scientist disagree with the current global warming bunk.
From: Global Warming: On Hold?: Discovery News
"Earth's climate continues to confound scientists. Following a 30-year trend of warming, global temperatures have flatlined since 2001 despite rising greenhouse gas concentrations, and a heat surplus that should have cranked up the planetary thermostat."
Maybe greenhouse gas aren't so greenhouse. Our sunm you know, does have cyclic outputs in varying amounts of energy that is emitted to warm our planet.