Passive cooling & heating, I especially like the concept of adding humidity through a conservatory

Passive cooling & heating, unique for such a diagram to include a conservatory area. Indoor gardens, wall gardens, conservatory areas etc have a huge role to play in eco-friendly design.

The Guide to Home Geothermal Energy - Popular Mechanics

The Guide to Home Geothermal Energy

Efficient and economical, geothermal heats, cools and cuts fossil fuel use at home. A ground-fed climate system can free a consumer from fluctuating energy prices and save money on power bills immediately.

casas ecologicas economicas mexico - Buscar con Google

This method reduces notching, but uses more cement, or cob fill. Having built a straw home, that is a lot of extra work. An easier way is to frame the walls the exact width of bales!