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All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.

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Climate Hustle

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Comments 1 to 5:

  1. We must reduce emissions 50% in 10 years to avoid 1.5° C. | Claire Fyson

    1.5° due by 2030.

    We must reduce emissions 100% in 20 years to avoid 2° C. | Stefan Rahmstorf

    2 C° due by 2050.

    2° C = DISASTER | James Hansen

    1° C = DANGEROUS CLIMATE CHANGE | James Hansen

    5 of 13 Tipping Points start at 1.5° - 2° C = Cascading Runaway Heating. | Hans Schellnhuber

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    Moderator Response:

    [DB] All caps usage snipped.

  2. BBB (@1): Interesting information. Could you reply w/ the list of 13 tipping points, and the 5 that will be tipped at 1.5-2.0C. I would like to see/know that list. Thanks! 

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  3. Recommended supplemetal reading:

    How Arctic warming could have steered Hurricane Florence towards the US, Guest Post by Jennifer Francis, Carbon Brief, Sep 17, 2018

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  4. Sauerj, the 13 climate tipping points are listed in this article on a useful map.

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  5. nigelj @4,

    The article you link-to is based on Steffen et al (2018) 'Trajectories of the Earth System in the Anthropocene' which, even with Schellnhuber as a co-author, doesn't provide a list of tipping points projected for +1.5-2.0ºC. The source of the Fyson & Rahmstorf quotes @1 appears to be this web page which does lists five tipping points, referencing a graphic presented within a YouTube video which is Fig 1 from Schellnhuber et al (2016) 'Why the right climate target was agreed in Paris'. This Fig 1 does show thirteen 'tipping points' (if you can call them that), of which five begin to 'tip' below 2.0ºC with one of them entirely 'tipping' below 2.0ºC.

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