More ideas from fc
Casa per gli insetti 2

Insect hotel - Sustainable ideas including an explanation of the materials used, which insects they provide a habitat for and why you want that insect. This would be perfect to have as a project to build with a youth program

chauffage solaire pour la maison supplémentaires

DIY Solar panels made of pop cans for home solar heating A great room by room supplement for central heating. But I would keep a heat pump or furnace for the days you have no sun.

solar performance diagrams (summer | winter... day | night) found with passive solar design basics article at

The basics of passive solar energy heating and cooling. I learned about this in environmental science!

Green Roof Structure

An extensive green roof is a green roof that is less than thick. As opposed to an intensive green roof that is more than thick.