Full Title: Disentangling the effects of CO2 and short-lived climate forcer mitigation
Author(s): Joeri Rogelja, Michiel Schaefferc, Malte Meinshausene, Drew T. Shindellg, William Harec, Zbigniew Klimontb, Guus J. M. Veldersh, Markus Amannb, and Hans Joachim Schellnhuber
Publisher(s): Proceedings of the National Academy of Sciences
Publication Date: 10/2014
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Anthropogenic global warming is driven by emissions of a wide variety of radiative forcers ranging from very short-lived climate forcers (SLCFs), like black carbon, to very long-lived, like CO2. These species are often released from common sources and are therefore intricately linked. However, for reasons of simplification, this CO2–SLCF linkage was often disregarded in long-term projections of earlier studies. Here we explicitly account for CO2–SLCF linkages and show that the short- and long-term climate effects of many SLCF measures consistently become smaller in scenarios that keep warming to below 2 °C relative to preindustrial levels.