How wood residues create clean energy, biochar, and jobs

A new production facility, Hat Creek Bioenergy, is on! Once the commissioning refinements are finished, the project is expected to produce over 5,000 tonnes of bone dry biochar and up to 15,000 tonnes of durable carbon dioxide (CO₂) removal per year.

A look back at ‘An Inconvenient Truth,’ 20 years later

Al Gore’s famous documentary has mostly stood the test of time.

Advancing carbon removal from policy protection to deployment

The Carbon Removal Alliance has published their mining technology and carbon removal work, including a full policy memo and accompanying educational content.

Wren Classic Portfolio updates (May 2026)

Every now and then, we update the Wren Classic Portfolio that subscribers support, to ensure we're funding the best projects possible. This does not change your subscription price and there's no action required, except to read on if you're curious.

Wren's 2026 Request for Proposals

Wren invites organizations working to implement climate solutions to apply to our 2026 request for proposals. Expressions of interest are open now through June 30, 2026.

5 million more tonnes of CO₂e avoided and counting

Since our last update on this project, our partner has reduced over five million tonnes of emissions with Adipic acid nitrous oxide abatement! Our project partner has also just passed the 50 million credits issued milestone since their founding.

Community-led conservation in Baja California Sur

Your support mobilized local students, teachers, and families to help restore mangroves in Baja California Sur. In this latest community-led effort, participants planted 1,230 red mangrove propagules across key coastal sites.

Helping 37 small landowners turn 20,000 acres into climate impact

The Wren team spent a day exploring the woods of one of the pilot forests, discussing forest management strategies, and seeing long-term stewardship in action.

What our projects are working toward in 2026

Looking to the new year, Wren subscribers will help scale climate solutions, advocate for smart policy, and protect nature-based projects that deliver real, measurable impact.

Building the policy foundations for carbon dioxide removal in Europe

Achieving net-zero will require a dedicated, high-standard European Union CDR strategy. Our partner’s 18 policy recommendations help prioritize actions to reach these climate goals.

How Aquarry can fight climate change with the Wren Slingshot

In November, Wren visited Aquarry's lab in Colorado. Our co-founder, Benjamin Stanfield, sat down with their founder and CEO, Dr. Kate Murphy, to discuss how this Wren Slingshot will best support their first full carbon removal project.

Wren Classic Portfolio Update: December 2025

Our newest project, Carbon Gap, fills a crucial void by working with policymakers, regulators, and scientific experts to ensure Europe adopts the robust climate policy.