Is global warming of +2C now unavoidable and likely to occur by 2029-2038 without emergency system change causing the demise of forests, putting world agriculture at high risk, and triggering 1.75-2.25m of sea level rise within decades leaving the world's major cities underwater?
1.
"we need to reduce emissions as quickly as possible - if we do that, we will still break 2C, but it will be hundreds of years in the future."
independent.co.uk/climate-change…
"we need to reduce emissions as quickly as possible - if we do that, we will still break 2C, but it will be hundreds of years in the future."
independent.co.uk/climate-change…
2.
Using a 1850 baseline (or 1750 baseline, my rough estimate) we might expect 2C between 2034 (2029) and 2052 (2047) in the highest emissions scenario, with a median year of 2043 (2038).
Modest mitigation: as early as 2038 (2033) with median 2052 (2047).carbonbrief.org/analysis-when-…
Using a 1850 baseline (or 1750 baseline, my rough estimate) we might expect 2C between 2034 (2029) and 2052 (2047) in the highest emissions scenario, with a median year of 2043 (2038).
Modest mitigation: as early as 2038 (2033) with median 2052 (2047).carbonbrief.org/analysis-when-…
3.
Even the most cautious scientists accept that without an end to deforestation and fragmentation, many or most major forests of the Earth, like the Amazon for example, will risk collapse by +2C. carbonbrief.org/guest-post-cou…
Even the most cautious scientists accept that without an end to deforestation and fragmentation, many or most major forests of the Earth, like the Amazon for example, will risk collapse by +2C. carbonbrief.org/guest-post-cou…
4.
New knowledge shows an increase in risks from..food system instability, even for global warming of around 1.5°C,” said Valérie Masson-Delmotte, Co-Chair of IPCC Working Group I.
Very high risks related to food system instability are identified at 2°C"
ipcc.ch/2019/08/08/lan…
New knowledge shows an increase in risks from..food system instability, even for global warming of around 1.5°C,” said Valérie Masson-Delmotte, Co-Chair of IPCC Working Group I.
Very high risks related to food system instability are identified at 2°C"
ipcc.ch/2019/08/08/lan…
5.
'medium to high confidence that agriculture is already at moderate risk, which becomes high risk around 2 degrees.' vox.com/science-and-he…
'medium to high confidence that agriculture is already at moderate risk, which becomes high risk around 2 degrees.' vox.com/science-and-he…
6.
'at 2 degrees of warming, melting and the accelerated ice flow into the ocean will, eventually, entail 2.5 meters of global sea level rise just from Antarctica alone'
phys.org/news/2020-09-s…
'at 2 degrees of warming, melting and the accelerated ice flow into the ocean will, eventually, entail 2.5 meters of global sea level rise just from Antarctica alone'
phys.org/news/2020-09-s…
7. At 2C the Greenland ice sheet will melt. It would take centuries to do so, but by 2065 - 2190 (that is to say decades, not centuries) it looks likely enough ice will have melted to combine with thermal expansion to attain 1.75-2.25m of sea level rise.
https://twitter.com/ClimateBen/status/1344038244355338240?s=20
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