In the late evening on December 18th, 2009, all eyes were on Copenhagen waiting to see if the Conference of the Parties 15 (COP15) of the United Nations Framework Convention on Climate Change (UNFCCC) would produce a global climate treaty that would require the nations of the world to reduce their output of greenhouse gas (GHG) emissions.

The EPA released a statement concluding that greenhouse gases (GHG) threaten public health, welfare, and the environment, and in turn, warrant regulation under the Clean Air Act (CAA). The implications of such a statement will be substantial and far-reaching, as many businesses will soon have to report on and abate their carbon footprints under the EPA’s strict command-and-control regulatory approach.