A decade left before we breach 1.5C
But this year's ratchet mechanism has even more significance.
In August, the UN's Intergovernmental Panel on Climate Change (IPCC) issued its starkest warning yet.
It found that on our current trajectory, we would heat the world by 1.5C by about 2030 — less than a decade from now.
According to the UN, the current targets will result in the world warming by 2.7C by the end of the century.
For that reason, countries like Australia — that have so far failed to lift their 2030 targets — this year have been the focus of sustained criticism.
https://www.abc.net.au/news/2021-10-31/cop26-is-our-best-chance-to-stop-global-warming/100567010
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