Join Piyush on Wren!
Join Wren and your first month is free.
Piyush is inviting you to Wren! Join them by calculating and offsetting your carbon footprint.
Discover your carbon footprint.
Use our intuitive carbon calculator to find out how much CO2e your lifestyle emits.
Fund the most impactful climate solutions.
Wren evaluates hundreds of projects each year and picks only the best.
Track your impact and stay in the loop.
Wren sends monthly project updates so you know what your funding accomplished.
Wren helps individuals, businesses, philanthropists take action.
For individuals
Easily calculate, reduce, and offset your carbon footprint.
- Monthly offset subscription
- Personalized reduction tips
- Detailed carbon calculator
For business
Fund certified carbon removal, share your climate impact with your audience, and more.
- Custom portfolios
- 1% for the Planet certified
- API integrations
For philanthropists
Craft a climate giving strategy and donate via a donor-advised fund.
- U.S. tax-deductible
- Give via DAF or stock
- Craft a climate legacy
The Wren Difference
Wren searches the globe for solutions with the most potential...
Selecting projects that meet Wren’s strict criteria...
- No double counting: Every carbon credit purchased by Wren is logged in a public ledger.
- Measurable results: The quantity of impact is based on peer-reviewed science.
- Additionality: If a project is profitable on its own, it's not eligible for Wren.
- Lasting impact: Projects must keep carbon out of the atmosphere for 100+ years.
Wren’s approach delivers world-class results.
- 34,592 Wren supporters worldwide.
- $23,990,807 Raised from supporters.
- 988,124 Tonnes of CO2e removed or avoided.
Frequently asked questions
For individuals
- How does Wren's business model work?
- What happens once I subscribe?
- 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.
- How much does it cost to offset my carbon footprint?
- What else can I do to help end the climate crisis?
For business
- How much does it cost to offset my carbon footprint?
- Can my business pay for just the parts of Wren that we need?
- Yes, Wren is designed to specifically fill the gaps in your existing climate plan. If you only need one of the services we provide, you only need to pay for that service.
Featured writing
- The Problems & Promise of Carbon Offsets - Read now
- Combining the layers of climate impact. - Read now
- Wren's 2026 Request for Proposals - Read now
- Funded it First: Wren-supported projects receive A+ ratings, XPRIZEs, backing from Microsoft and Google - Read now
- Wren's approach to growing trees for climate action - Read now