HeyJaredCDR Updates from Carbon Drawdown Initiative
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- Indexed issues, last 90 days
- 5
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- Aug 6, 2026
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- Jul 18, 2026
Latest issues
Portfolio Spotlight: AEROC — Giving Enhanced Rock Weathering Its Eyes (opens the original)
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<img alt="" class="sizing-normal" height="646" src="https://substackcdn.com/image/fetch/$s_!ARU4!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb2d04ca8-54ef-4155-8332-bda429fc7ac3_1500x1500.pn
Carbon Drawdown Initiative Touches 5-10% of the CDR Workforce. Here’s What That Means. (opens the original)
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The numbers behind the claimWe recently surveyed our portfolio companies on two questions: how many people do you employ, and how much CDR have you actually delivered?The answers:961 employees across the portfolio806,000 tonnes of CO₂ removed and delivered by end of 202555% of our companies have already issued verified CDR certificates to buyers806 kilotonnes. The entire CDR industry globally was estimated to have delivered roughly 0.015 gigatonnes in 2025. Our portfolio a
Portfolio Spotlight: CREW Turns Wastewater into a Carbon Sink (opens the original)
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<img alt="" class="sizing-normal" height="586" src="https://substackcdn.com/image/fetch/$s_!F4I3!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb21afb6e-c698-4c46-bd80-c379479c7b4b_1080x1080.pn
[RESEND] Where does the CO₂-removal potential of enhanced weathering actually go? (opens the original)
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THIS IS A CORRECTION: Earlier today we unfortunately sent out an old version of this article. Now here is the correct version. Sorry for the duplicate email!<img alt="" class="sizing-normal" height="925" src="https://substackcdn.com/image/fet
To produce high weathering effects, we turned our greenhouse "up to 11": but where on Earth would that be? (opens the original)
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When we set up our greenhouse experiment in 2023 we deliberately maximised weathering to get the strongest possible signal: we turned every dial to "11", soil held at 19–30 °C, plants growing throughout the year, and we aimed for a lavish ~2,000 mm of irrigation a year (in summer we even had to apply up to 4000 mm, because otherwise we would not have collected enough leachate to measure carbon removal). That poses two questions with a single answer: if we wanted these conditions outdoors, where
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