Comments 1 to 5:

1. BeezelyBillyBub at 08:27 AM on 21 September, 2018

   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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   [DB] All caps usage snipped.

2. sauerj at 23:16 PM on 21 September, 2018

   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. John Hartz at 04:33 AM on 22 September, 2018

   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. nigelj at 05:40 AM on 22 September, 2018

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

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5. MA Rodger at 08:51 AM on 22 September, 2018

   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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