For this very same reason, cartography has also been used as an activist tool, way before Google Maps was invented, but the recent trend in mapping and data visualization has meant an increment in the use of cartography as a mean to represent reality from a radical stance.

Surveillance camera maps and other countless mashups of economic and geographic data are now joined by Sourcemap. The project taps into the local consumption angle and sustainability that we have covered here before, and wants to show in a map the supply chain for a given product, calculating the carbon footprint of producing and delivering that product.

Sourcemap is a platform that enables users to contribute to and share ideas about sustainability. Whether you are inviting people to an event, buying ingredients for a recipe, or designing a product, your choices have a significant impact. Some decisions have impacts that stretch across the world, whereas others are entirely regional. Understanding the reach of our actions and facilitating positive change is fundamental to improving economic, social, and environmental conditions.

Sourcemap, sponsored by the MIT Medialab is looking for volunteers.