Articles | Volume 5, issue 2
Research article
24 Nov 2014
Research article |  | 24 Nov 2014

Path independence of climate and carbon cycle response over a broad range of cumulative carbon emissions

T. Herrington and K. Zickfeld


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Short summary
Recent studies have identified an approximately proportional relationship between global warming and cumulative carbon emissions. This relationship – referred to as the transient climate response to cumulative carbon emissions (TCRE) – is useful for climate policy applications. We show that the TCRE is constant for cumulative emissions lower than ~1500GtC but declines for higher cumulative emissions. We also find the TCRE to decrease with increasing emission rate.
Final-revised paper