If your car is not in the shade on a sunny day (even in winter), it warms up quickly. That's the greenhouse effect.
If the windows in your house are in the right places, your house will warm up in winter, too. But how do you retain that heat? Thermal mass. If you're not already familiar with the concept, BuildingGreen.com has a good primer for you. Click here to read it.
Whether you want to learn how to grow and raise your own food, build your own root cellar, or create a green dream home, come out and learn everything you need to know — and then some!LEARN MORE