Hi Peter,
I noticed that you have organised this potentially groundbreaking meeting.
The current strategy of reliance on emissions reduction, promoted by a powerful environment lobby, is not based on sound science and risks a dismal future for humanity. Emissions reduction cannot lower temperatures, it can only slow the rate of warming and even that is in doubt.
PRAG's conclusion is that powerful cooling intervention is urgently needed to lower temperatures and ensure a healthy climate for the future.
The planet is already too hot, and emissions reduction won't cool it. Likewise for the Arctic.
There is already a high risk from the reaching of a point of no return for Arctic meltdown which would commit future generations to abrupt climate change, ever worsening weather extremes, metres of sea level rise, and mass migration. Absolute misery.
To lower temperatures globally and in the Arctic requires massive cooling power which only SAI can bring: MCB would simply not be powerful enough (assuming it could be made to work effectively) even at the theoretical maximum. I've done the calculations using figures from Stephen Salter.
I cannot join your AGU meeting tomorrow as I've not registered for the AGU conference. But if you could get our message of hope for the future across, the meeting would indeed be groundbreaking.
Cheers John
https://connect.agu.org/gec/discussion/agu-town-hall-on-monday-what-more-scientists-can-do-to-help-secure-a-livable-climate-future-1