irational.org is an influential online platform and an informal collective of media artists established in 1996.

Based in Bristol, UK, it has played a significant role in early internet art.

Members of irational.org engage in activities such as survival workshops and foraging events, reflecting their interest in resilience and autonomy in the face of societal challenges.

Some irational.org members, and those they inspire, engage in activities that could be considered "green infrastructure" projects. This involves creating or improving urban greenspaces and enhancing habitats for wildlife. Such projects also have a strong community engagement element, providing opportunities for people to learn about and connect with their local green spaces.

A significant portion of its members' work inherently engages with environmental themes, critiques the prevailing societal approach to nature, and offers alternative, more sustainable ways of living and interacting with the world.

The group implicitly and explicitly promotes practices of resourcefulness and reuse.