A small growth
in the CH4 concentration has increased its RF by 2% to an AR5 value
of 0.48 (0.43 to 0.53) W m–2
. RF of nitrous oxide (N2O) has increasedby 6% since AR4 and is now 0.17 (0.14 to 0.20) W m2–2
. N
O concentrations
continue to rise while those of dichlorodifluoromethane (CFC12)