Climate philanthropy for carbon removal innovation.

Join a donor community funding early-stage carbon dioxide removal innovators working to scale critical technologies.

Humanity is behind schedule on carbon removal.

90% of CDR purchases have come from just 10 companies.

We are unlocking philanthropic capital to scale a new wave of carbon removal companies.

2024 CDR philanthropy thesis:

Why is philanthropic capital needed for carbon removal technology?

Wren is the #1 consumer CDR buyer in the world.

$15M+

Raised for projects

4M+

Contributions

33K+

Supporters

800K+

Tons of CO₂ offset

Mati Carbon

Mati Carbon spreads abundant, locally sourced crushed rock on rice paddies, accelerating the natural weathering process in which rock absorbs carbon dioxide.

Pacific Biochar

Pacific Biochar uses a process called pyrolysis to convert sawmill and forest residues into biochar, a carbon-rich charcoal.

Carbon Removal Alliance

Carbon Removal Alliance works to advance policies that support a diverse set of permanent carbon removal technologies.

Graphyte

Graphyte removes CO₂ from the atmosphere by taking residual or waste biomass leftover from timber and agricultural operations and producing carbon blocks that are stored safely underground.

UNDO

UNDO accelerates the rock weathering process by spreading crushed silicate on farmland, providing it immediate contact with carbonic acid from the rainwater.

Charm Industrial

Charm Industrial collects biomass residues and converts them into a stable, carbon-rich liquid called bio-oil.

We fund CDR projects based on nine diligence criteria.

Credible pathway

Research demonstrates science-backed proof of concept of the pathway.

1,000+ yr. durability

There is broad scientific consensus that carbon is removed and durably stored for over 1,000 years.

Climate equity

Projects are inclusively designed and implemented and align with environmental justice principles.

Additionality

Activities are not required by law and are not widely implemented today.

Mitigation of externalities

Plans are in place to ensure ecosystems and communities are not harmed.

Maximized co-benefits

Activities contribute to Sustainable Development Goals and do more than remove carbon.

Financial self-sufficiency

The company has a plan to make money – through the sale of carbon credits or otherwise.

Policy alignment

Activities are aligned with national and international climate policy – such as the Paris Agreement.

Technological readiness

The company is working on research, feasibility, and demonstration to reach sub-$100 cost per tonne.

Our due diligence process is completely open-sourced.

Climate Philanthropy: Practical Steps for Giving

Watch our free webinar on-demand to learn about the future of climate philanthropy and how you can be a part of it.

Meet our founding team

Benjamin Stanfield

Co-founder, Wren

Sophie Westover

Head of Climate, Wren

Zahra Qureshi

Research, Wren

Myron Lam

Advisor & CDR Consultant

Giana Amador

Advisor & Founder, CRA

Albert Wenger

Advisor & USV Partner

Aidana Rakhimova

Advisor & Climate Strategist

Donor tiers

While there is no minimum donation amount, the average donation is $6,000, and comes with a host of donor benefits.

Frequently asked questions

Can I set up a recurring donation?

How much should I donate?

Can I write donations off on my taxes?

What is the fee structure like for donations?

Can my donation be matched by my employer?

Is every payment on Wren tax-deductible?

No. Our primary Wren Classic and Wren Trailblazer offsetting portfolios are not tax-deductible. However, the Wren Climate Collective is a fiscally-sponsored 501(c)(3) non-profit with donations tax-deductible in the United States.

Who can donate?

How can I donate?

Do I have a say in where the donations go?

How is my donation tax-deductible if Wren is not a non-profit?

Talk to a

Wren team member

Have specific questions or requests? Our team is here to help answer them.

Ways to donate

Donate online now

Make an instant donation online via Stripe.

Make a non-cash donation

Explore our options for making non-cash donations.

Talk with us

Let us help you plan out your giving strategy.

Wren Climate, PBC is partnering with GVNGorg, a 501(c)(3) non-profit organization, to provide the Wren Climate Collective with tax-deductible status, and to assist with grant-making. If you are interested in learning more about our partnership with GVNG, please reach out to team@wren.co.