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We calculate the absolute regional temperature changepotential (ARTP) of various short-lived climate forcers (SLCFs) based ondetailed radiative forcing (RF) calculations from four different models. Thetemperature response has been estimated for four latitude bands(90–28° S, 28° S–28° N, 28–60° N,and 60–90° N). The regional pattern in climate response not onlydepends on the relationship between RF and surface temperature, but also onwhere and when emissions occurred and atmospheric transport, chemistry,interaction with clouds, and deposition. We present four emissions casescovering Europe, East Asia, the global shipping sector, and the entireglobe. Our study is the first to estimate ARTP values for emissions duringNorthern Hemisphere summer (May–October) and winter season (November–April).The species studied are aerosols and aerosol precursors (black carbon,organic carbon, SO2, NH3), ozone precursors (NOx, CO,volatile organic compound), and methane (CH4). For the responseto BC in the Arctic, we take into account the vertical structure of the RFin the atmosphere, and an enhanced climate efficacy for BC deposition onsnow. Of all SLCFs, BC is the most sensitive to where and when the emissionsoccur, as well as giving the largest difference in response between thelatitude bands. The temperature response in the Arctic per unit BC emissionis almost four times larger and more than two times larger than the globalaverage for Northern Hemisphere winter emissions for Europe and East Asia,respectively. The latitudinal breakdown likely gives a better estimate ofthe global temperature response as it accounts for varying efficacies withlatitude. An annual pulse of non-methane SLCF emissions globally(representative of 2008) lead to a global cooling. In contrast, winteremissions in Europe and East Asia give a net warming in the Arctic due tosignificant warming from BC deposition on snow

Regional temperature change potentials for short-lived climate forcers based on radiative forcing from multiple models