Carbon capture is rising again — with caveats
A short read on why direct air capture and point-source CCS keep cycling between hype and quiet skepticism, and what to actually watch.
Carbon capture is in another hype cycle. Funding flows from US Department of Energy hubs, oil-major retrofits in the Middle East, a handful of well-publicised direct-air-capture facilities in Iceland and Texas — the headline volume has noticeably stepped up over the past two years. Whether the technology actually delivers at climate-relevant scale is a separate question, and one the live numbers are not yet able to answer.
Two flavours, two stories
There are two technologies sharing the "carbon capture" label. Point-source capture sits at the smokestack of an existing emitter — a cement kiln, a steam reformer, a coal plant — and scrubs CO₂ out of the flue gas before it leaves the chimney. It is mature engineering; the engineering challenge is mostly cost and energy penalty, not feasibility. Direct air capture pulls CO₂ from ambient atmosphere at concentrations of ~420 parts per million. That is roughly 300 times less concentrated than flue gas, and the thermodynamic minimum cost is correspondingly higher.
What to watch in the next 12 months
Three signals are worth tracking. Cost per tonne at the largest operating DAC facilities — published numbers are reportedly still in the high triple-digit USD range; meaningful deployment will need them well under $200. Permanence of storage — is the captured CO₂ being injected into geology that will hold it for centuries, or used for enhanced oil recovery (which arguably undoes the capture). Cumulative tonnes captured globally per year, audited; industry-tracker figures put it on the order of about 1 million tonnes annually against global emissions of roughly 40 billion tonnes a year. The gap, for now, is several orders of magnitude.
For Mampani users: capture matters in the long run, but offsets sourced from forest and renewable projects remain the higher-confidence per-dollar lever today.

