Category Topics

CDR Advocacy

Legislation and policy proposals developed and campaigned for by OpenAir advocates to accelerate carbon removal on the federal, state and local level.

Research & Development

Open source carbon removal products, objects and experiments developed by OpenAir members and missions.


Epiphyte is a miniature, stand-alone, open source direct air capture machine that was designed by a small group of OpenAir members, located all over North America, in 2023. The design drew significant inspiration from an original prototype developed by a team young engineers at Octavia Carbon in Nairobi Kenya. Epiphyte is led by a team of volunteers with decades of combined professional electrical, mechanical and chemical engineering and design experience.

Knowledge & Education

Webinars, workshops and other creative content produced by OpenAir members to inform and mobilize support for CDR.

Activist Business Development

OpenAir missions focused on promoting, accelerating and clearing obstacles for real world CDR projects

Carbon Gardener

Carbon Gardener is a global citizen science project launched by OpenAir in 2023 to accelerate data validation of Enhance Rock Weathering.

CDR Share

This is the place to share and debate thoughts, ideas and commentary related to CDR methods, markets, and policies.


CDRwiki is a knowledge hub for CDR concepts, methods, people and organizations curated by OpenAir members.


The community of OpenAir Collective is our members and colleagues. This category of topics pertains to knowing each other and organizing how to work together to achieve our objectives. The topics in this category are not specific to advocacy, technological development, or education about accelerating carbon dioxide removal. We are a “herd of cats” - each following our own inclinations, within the broad consensus of [where that is described], but we can often be found via:

Standard Operating Procedures

Apply your creativity to solving the problem of carbon dioxide removal - not to devising methods for how to get started working on the problem! There are methods already ironed out so just grab a tool and start hammering, or whatever.