International. The Annual Greenhouse Gas Index (AGGI) revealed that in 2010, the emission of HFCs (Hydrofluorocarbons) accounted for 0.605% of the total HFC (Hydrofluorocarbons) of the total HFC (Hydrofluorocarbons) accounted for 0.605% of the total HFC Gases emitted into the atmosphere. A figure that, although higher than those of the previous two years, represents a slight increase taking into account the continuous global growth.
In 2009 this percentage was 0.58% and in 2008 0.55%, which means that year after year the levels increase slightly.
The European Technical Committee for Fluorocarbons (EFCTC) reported that the figure reveals that the "important gases" take the highest percentages in the radiation result with 96%, while the "minor gases", that is, those corresponding to halogenated ones, have 4% radiation; most of these gases include CFC-11 and CFC-12 and exclude all other ozone-depleting substances (ODS).
Within that 4%, HFCs (including HFC-134a, HFC-152a, HFC-125, HFC-143a, and HFC-23) account for 0.605% of all GHG (greenhouse gas) emissions.
In the last 20 years the radioactive forcing of all GHG emissions increased 29% (~0.63 W/m2),and CO2 has contributed about 80% in that increase (~0.50 W/m2) since its increase since 1990 has been approximately 39%. This and nitrous oxide are the only major gases that continue to increase regular rates.
