Some people think reducing CO2 emissions will somehow make the world cleaner, but it won't. If not for AGW, there's no real urgency to reduce CO2 emissions, it's not a pollutant.
Except for Ocean Acidification. We are already starting to hit the turning point where hard shelled marine creatures are unable to form their shells because of acidification. Visible effects are starting to be seen in the Antarctic - pteropods are now starting to become unviable due to the cold water amplifying the effects of acidification. These little snails are a key food source in the ecosystem, if their population collapses, it will wreck untold damage on the marine ecosystem.
So yes, there still is an urgency to reduce CO2 emissions, and yes, it is a pollutant.