Hi everyone,
Note that 9 pm UK time is 5 pm EDT and 2 pm PST, as clocks have changed in the US, but not yet in the UK. It will be 8 am AEDT. All are welcome. The main agenda item is approval of text for submission to the EU on behalf of PRAG. But personal submissions are encouraged.
I am currently trying to restructure our submission to have a paragraph or two on each of the four tipping points. But this is what Claude has produced so far, working on my original text:
The EU needs a fundamental rethink of its Arctic policy. The Arctic is the primary driver of the immediate climate crisis and the coming sea level crisis, yet current policy prioritises exploitation over protection. This is a strategic failure of historic proportions — and the window to act is closing fast.
The paleo record is unambiguous: at the end of the Younger Dryas, 11,700 years ago, Arctic temperatures leapt 7–10°C over a few decades. Sea levels rose 20 metres in 400 years. Megatsunamis followed the collapse of the Hudson Bay ice dome. Global climate was transformed within a human lifetime. What is now unfolding is human-driven, faster, and starting from a higher base temperature — with 8 billion people in the path of consequences our ancestors never faced.
Since 1980, the Arctic has warmed at four times the global rate, now tracking at 0.35°C per decade — meaning 2°C globally by 2040 and 4°C by 2100, with 8°C and 16°C respectively in the Arctic. The Greenland Ice Sheet holds enough ice to raise sea levels by at least 7 metres. A partial collapse could begin without warning, triggering megatsunamis and sudden irreversible sea level rise, and promoting the collapse of already-critical Antarctic glaciers. A 2.5 metre sea level rise this century is plausible; a significantly greater rise cannot be ruled out.
Four interlocking tipping processes are accelerating, each capable of passing a point of no return. Glacier discharge is raising sea levels now. Thawing permafrost is releasing methane — far more potent than CO₂ — directly amplifying warming. A narrowing Arctic-to-tropics temperature gradient is destabilising the polar jet stream, locking it into blocking patterns that produce the stuck weather now battering Europe: prolonged droughts, deadly heatwaves, and catastrophic floods. And the Atlantic Meridional Overturning Circulation is weakening — its collapse, now considered possible within decades, would permanently alter European weather and devastate continental economies. These processes cascade. Greenland's partial collapse could directly trigger AMOC failure. Once any tipping point is crossed, reversal is impossible. Inaction is not a neutral choice — it is a choice for irreversible systemic collapse.
Every EU coastal state faces inundation from converging sea level rise, storm surges, and extreme precipitation. Coastal defence infrastructure scaled to 2.5 metres or more of sea level rise would be staggering in cost and ultimately futile. Cooling through Stratospheric Aerosol Injection would cost a fraction of that — while treating the cause, not the symptom.
Meanwhile, major powers are treating the Arctic meltdown as a commercial opportunity, planning shipping routes and resource extraction. This is folly. The EU must fight to protect the Arctic from meltdown.
The EU has the scientific capacity and moral authority to lead global Arctic protection through targeted cooling interventions and binding international protections. The alternative — incremental adaptation to accelerating catastrophe — will cost incomparably more, in money and in lives.
The time for cautious language has passed. The EU must change its policy towards the Arctic and strongly advocate for emergency deployment of cooling intervention at scale to protect the Arctic from catastrophic meltdown.
The only words I've changed are the ones underlined. Perhaps it doesn't need restructuring - what do you think?
Cheers, John