What if the most common man-made substance on Earth could made to reduce air pollution? And what if this substance just happened to be in highest demand in those parts of the world--large urban areas--where air pollution is worst?
Too good to be true? I'd say so, but apparently an Italian firm has accomplished just such an environmentally friendly feat by coming up with a smog-reducing chemical compound that can be added (at very low cost) to cement.
If you're skeptical, see this FP Passport post for a link to the Business Week story reporting on Italcementi's innovation.