, 4 tweets, 2 min read
Unbridled alarmism:

No, our current trajectory is about 4°C, not 6°C

No, 4°C is not the end-of-the-world, it is a problem, equivalent to reducing average income by about 3-4% in 2100 (when OECD will be 200-500% as rich as today and Africa 300-2,200% richer)
Here is the UN Climate Panel estimate of damages, updated by Nobel Laureate Nordhaus

Here is the UN Climate Panel estimates of incomes

OECD/Africa accessible here: tntcat.iiasa.ac.at/SspDb/dsd
The new 1.5°C UN Climate Panel report quoted the cost of
1.5°C at 0.3% of GDP by 2100
2°C at 0.5% of GDP by 2100
3.6°C at 2.6% of GDP by 2100

Problem, not by ANY standards end-of-world
p256, ipcc.ch/sr15/chapter/c…
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