CmdrTaco from the i-hate-august-news-cycles dept.
eldavojohn writes "In an effort to combat air pollution, a Dutch town has paved some of its streets with air-purifying concrete. It contains a titanium dioxide-based additive that utilizes sunlight to turn car exhaust into harmless nitrates. It was shown to do this in a lab and now the scientists are interested in just how much this will affect the air quality around the road. They will sample the air quality by a normal road and by this newly paved one."
What is mind? No matter. What is matter? Never mind.
-- Thomas Hewitt Key, 1799-1875