John Moore – Polar Interventions to Save the Cryosphere Must Have Local Winners, HPAC, January 8, 2026 cryosphereIce Sheetspresentationsea level rise John Moore – Polar Interventions to Save the Cryosphere Must Have Local Winners, HPAC, January 8, 2026 https://www.youtube.com/watch?v=n9ztQJtxofU&t=237sHPACAdminJanuary 8, 2026