On Dec. 7, 2009, the United States Environmental Protection Agency (EPA) issued the final Greenhouse Gas (GHG) endangerment finding under Section 202(a) of the Federal Clean Air Act (CAA), 42, U.S.C. § 7521. EPA focused on six GHGs — carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF6). The endangerment finding set the wheels in motion first for reporting emissions of GHGs and, by Jan. 2, 2011, for requiring permits for GHG emissions from new and modified stationary sources. GHG will have increasingly more significant implications, directly and indirectly, for the aggregate industry. The EPA has proposed to expand GHG emissions reporting to cement production; onshore and offshore petroleum and natural gas production, processing, transmission, underground natural gas storage, and distribution; underground coal mines; and industrial wastewater treatment; among other industrial activities, starting in January 2011. Larger GHG emissions sources will be subject to permitting, as well.
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Reprinted with permission from Aggregates Manager Magazine.