Name Radiative forcing Concentration Pathway shape
RCP8.5 >8.5 W/m2 in 2100 > ~1370 CO2eq in 2100 Rising
RCP6 ~6 W/ m2 at stabilization
after 2100
~850 C O2-eq
(at stabilization after 2100)
Stabilization without
overshoot
RCP4.5 ~4.5 W/ m2 at stabilization
after 2100
~650 C O2-eq
(at stabilization after 2100)
Stabilization without
overshoot
RCP 2.6 peak at ~3W/ m2 before
2100 and then decline
peak at ~490 C O2-eq before 2100 and then decline Peak and decline1
Table 1: Types of representative of concentration pathway (RCPs).