Captain Drawdown’s weekly Sunday selection — 21 candidate stories considered, 6-9 picked. Each link carries our 1-2 sentence take so you don’t have to click everything to know what’s there.

The week’s signal sits at the intersection of policy retrenchment and methodological maturation: U.S. disclosure rules are being unwound just as Europe and Asia tighten market plumbing, and the science community is sharpening the question of what “permanent” actually buys you. Two large buyer deals also landed, both shaped less by climate ambition than by procurement strategy and portfolio engineering.

Buyer side moves

Policy and market design

Science sharpening the definitions

The dominant signal: the market is being shaped more by rulebooks (EU ETS design, ASEAN linkage, SEC withdrawal) than by new tonnes. Conspicuously absent this week — no major DAC capacity announcements, no new offtake from the hyperscalers, and remarkably little on measurement, reporting, and verification (MRV) despite three separate methodology fights ongoing in the background.