It takes a lot of energy to produce concrete, so when possible, it's good to look for substitute building materials. Here are a couple of options that might be good choices for a garage.
Concrete countertops have some big benefits: They're inexpensive and easy to install yourself. Check out the details here.
Three business partners created Wild Rose Timberworks over 15 years ago based upon shared values.
On-demand water heaters provide an “endless supply” of hot water, but are they really “green”?
Mother Earth News' green homes editor discusses eco-friendly insulation options, and explains why some are greener than others.