Maybe we should start looking to concrete—made out of locally-sourced water, stone, sand & gravel—as a green solution to America’s infrastructure problems.
Dear EarthTalk: I’ve heard that making and installing concrete takes a big toll on the environment. What’s being done to clean up this industry? —Jenn Chadwick, Washington, DC The 20 billion tons of concrete produced around the world annually account for an estimated five to […]
Forget the old saying that people who live in glass houses shouldn’t throw stones. Now you can live in a “papercrete” house (made from recycled paper and Portland cement) that’s so strong stones won’t make a dent.
