Captain Drawdown’s daily logbook on every CDR story, paper, and expert voice — so you don’t have to read them all.
Five numbers from the past week. Together they sketch a market where buyers are writing bigger checks than ever, while the people, electrons, and dollars-per-ton math underneath those checks remain stubbornly thin. The demand side is sprinting. The supply side is still putting on its shoes.
20,000 tonnes. Boeing’s new portfolio purchase through Supercritical, sourced from biochar and enhanced rock weathering, is among the largest aviation-linked durable CDR offtakes inked for 2026. The signal matters as much as the volume: ERW (enhanced rock weathering, where crushed silicate rock pulls CO2 out of the air as it weathers) is now considered procurement-grade alongside biochar. That is a credibility milestone we flagged when Mombak generated the first Isometric-verified ERW credits.
9,558 people. That is the entire pure-play CDR workforce across 570 firms globally, per our Directory liveliness data. Fewer humans than a single mid-sized hospital. Every gigaton roadmap assumes this number grows by an order of magnitude this decade, and nobody is pricing the hiring bottleneck into delivery timelines.
500,000 TWh. That is the electricity bill, at today’s DAC energy intensity of roughly 2 MWh per tonne, to remove the 250 GtCO2 needed to drag atmospheric CO2 from 420 ppm back to 300. Captain Drawdown (@captaindrawdown.bsky.social on Bluesky) put it bluntly: “Going from ~420 to 300 ppm means removing roughly 250 GtCO2. At today’s DAC energy use (~2 MWh/ton), that’s ~500,000 TWh, about 17 years of global electricity.” The number is not an argument against DAC. It is an argument for ruthless energy-intensity reduction and clean-power PPAs locked in early. CDR is for hard-to-abate residual emissions, not a substitute for cutting fossil use.
$100 million per year. New Stanford modeling in Nature Communications Sustainability finds that $100M/yr spent on utility-scale wind or solar beats DAC on combined climate and health benefits across nearly every US grid region through 2050. This is the opportunity-cost argument with a price tag attached. Every CFO weighing a DAC offtake against a corporate PPA now has a citable reason to ask hard questions. DAC operators need to answer them with cleaner energy inputs and lower cost-per-ton, fast.
€3.6 million. Finnish CO2-to-fuels startup Reduciner’s seed round is roughly the same order of magnitude as a single Boeing offtake. CCU and eFuels are capital-starved relative to the demand stacking above them. And as Chris Bataille (@chrisbataille.bsky.social on Bluesky) noted on fuel-tax math: “At >$0.80/l SoH markup, 34.2 MJ/l, and 0.07t CO2/Gj this morning’s equivalent CO2 price is … drumroll… ~$340/t CO2e.” Drivers already pay DAC-adjacent carbon prices at the pump. The constraint is framing, not absolute cost.
The pattern. Procurement is maturing fastest. Offtakes are getting larger, more diversified across pathways (see Climeworks adding biochar), and willing to pay durable-credit prices. But the workforce is sub-10,000, the energy ceiling is decades of global electricity, the renewables-versus-DAC comparison just got formalized in a peer-reviewed journal, and CCU rounds are an order of magnitude smaller than the offtakes pulling on them. Capacity will be the binding constraint long before buyer appetite is.
What to watch through Q3: whether the next wave of hyperscaler and aviation offtakes translates into measurable headcount growth in the Directory, or whether deal volume keeps outrunning the people available to deliver it. Hire now. Sign the PPA now. The arithmetic is not patient.
Citations
- Carbon Herald — Supercritical
- Bluesky — @captaindrawdown.bsky.social on Bluesky — Bluesky post
- Nature — Nature Communications Sustainability — research paper
- Carbon Herald — seed round
- Bluesky — @chrisbataille.bsky.social on Bluesky — Bluesky post