Emissions de gaz à effet de serre aux Etats-Unis

Durant la période 2005-2012, les émissions de gaz à effet de serre ont chuté de 10% alors que les émissions de HFC ont augmenté de 26,2%. (en anglais)
The Environmental Protection Agency (EPA) recently reported that US greenhouse gas emissions  – including CO2, CH4, N2O, HFCs, PFCs and SF6 – dropped by 3.4% from 6,753.0 Tg CO2 equivalent  in 2011 to 6,525.6 in 2012. HFC emissions rose by 1.7% from 148.6 in 2011 to 151.2 in 2012.

During the 2005-2012 period, US greenhouse gas emissions dropped by 10.0% while HFCs rose by 26.2%.
HFCs represented 1.7% of greenhouse gases in 2005 and 2.3% in 2012.