The best sustainability resources in 2025

Bolt — Build your site or app today with AI

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Wren is a web app that makes it easy to offset your carbon footprint. Our mission is to build tools that help everyone act against climate change. We're starting with a subscription service that offsets your footprint because it's a simple and direct way to take action against climate change.






10.
Greenspark
—Climate action on autopilot4.9 (11 reviews)
- Overview
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Integrate climate action into any user experience. Seamlessly support impactful climate projects: plant trees, rescue ocean plastic & tackle climate change for sales, subscribers, downloads or your next project. One powerful API to make it all happen!
