Editing IPCC:AR6/WGIII/Chapter-14 (section)

==== 14.1.2.3 IPCC Special Reports ====

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Further key developments since AR5 include the release of three IPCC special reports. The first of these assessed the differential impacts of limiting climate change to 1.5°C global average warming compared to 2°C warming, indicated the emissions reductions and enabling conditions necessary to stay within this limit ( [[#IPCC--2018a|IPCC 2018a]] ). While the events that have unfolded since the report are not yet comprehensively documented in literature, arguably the report has led to a renewed perception of the urgency of climate mitigation ( [[#Wolf--2019|Wolf et al. 2019]] ). In particular, the report appears to have crystalised media coverage in some parts of the world around a need to reduce emissions to net zero by 2050 (whether of GHGs or CO 2 ), rather than delaying such reductions until the latter half of the century, as had been previously understood and indicated in the Paris Agreement. Its release is hence one factor explaining the rise in transnational climate mobilisation efforts ( [[#Boykoff--2019|Boykoff and Pearman 2019]] ). It has also played a role, in addition to the Paris Agreement ( [[#Geden--2016a|Geden 2016a]] ), in the numerous announcements, pledges and indications by governments, including by all G7 countries, of their adoption of net zero GHG targets for 2050. The other two special reports focused on ocean and the cryosphere ( [[#IPCC--2019a|IPCC 2019a]] ), and the potential of land-related responses to contribute to adaptation and mitigation ( [[#IPCC--2019b|IPCC 2019b]] ). There has been no literature directly tying the publication of these latter two reports to changes in international cooperation. However, the 25th UNFCCC Conference of Parties in Madrid in 2019 convened a dialogue on ocean and climate change to consider how to strengthen mitigation and adaptation action in this context ( [[#UNFCCC--2019a|UNFCCC 2019a]] , para. 31).

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