Finding gives US EPA power to regulate greenhouse-gas emissions

摘要

CARBON dioxide (CO2) and five other greenhouse gases (GHGs) present a public health hazard, according to a December ruling by the US Environmental Protection Agency (EPA). The organisation "is now authorised and obligated to take reasonable efforts to reduce greenhouse pollutants under the Clean Air Act (CAA)", said EPA head Lisa Jackson. It is "perhaps the most significant decision ever reached in environmental law", she claimed.