Policy ForumCLIMATE POLICY

Double counting and the Paris Agreement rulebook

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Science  11 Oct 2019:
Vol. 366, Issue 6462, pp. 180-183
DOI: 10.1126/science.aay8750

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  • A new global warming policy is needed

    Lambert Schneider et al., wrote an article entitled “Double counting and the Paris Agreement rulebook” (1). IPCC policy against global warming is based on total solar irradiance (TSI). TSI plays a key role in deducing causal inference in global warming. TSI measurement started from 1978. Before 1978, IPCC has used uncertain proxy which is mentioned in their official report (2). The IPCC official report stated “As direct measurements of total solar irradiance (TSI) are only available over the past two decades it is necessary to use other proxy measures of solar output to deduce variations at earlier dates. It is not clear which proxy, if any, can be satisfactorily used to indicate past values of TSI. Knowledge of solar radiative forcing is uncertain, even over the 20th century and certainly over longer periods.”

    Therefore, deduced conclusion by IPCC is inconsistent and illogical. In other words, we need to create a new policy for alleviating global warming.

    References:
    1. Lambert Schneider et al., “Double counting and the Paris Agreement rulebook,” Science 11 Oct 2019: Vol. 366, Issue 6462, pp. 180-183
    2. https://archive.ipcc.ch/ipccreports/tar/wg1/245.htm

    Competing Interests: None declared.