MSNBC notes that the EPA will not list CO2 as a pollutant, because it has not been granted that authority by Congress. That rings in as good news for both people and plants, who have a direct relationship with the alleged pollutant.

Banning CO2, would have had a huge impact on plants. It is a key component of their life force, and would be akin to banning sunshine, water, or dirt. The announcement also lets humans breathe easily, literally. Banning CO2 would mean that people, who exhale the "pollutant" an average of 60 times a minute, would be comitting a crime with every breath. The worst pollutors, people who exercise regularly, would probably have been the first ones targeted for enforcement.

UPDATE: AP: EPA Exempts Plants From Clean-Air Rule