buildings

Deutsche Welle
Old tires, glass bottles and plastics might be considered useless in some parts of the world, but in others, they're valuable building materials. An NGO in Guatemala inspires volunteers to build sustainable, green homes, and even pay for them! The... Read More
OpenEI.org (Open Energy Information) is built on a linked, open-data platform to facilitate the exchange of renewable energy information by members of its community. Similar in scope to Wikipedia, OpenEI encourages contributions from its users,... Read More