@dr.noc: Did you know over 40% of U.S. residents live in areas with unhealthy air? Now imagine a roof that can help clean the air. Sounds like science fiction, right? Wrong! 🏠🍃Thanks to 3M, roofs can now fight air pollution. Their Smog-Reducing Granules, embedded in roofing materials, react with sunlight to the nitrogen oxides in smog into nitrates. Rain washes these nitrates away, nourishing plants on the ground. Your roof can now do the work of two trees! 🌳🌳This innovative solution shows how we can leverage science for a brighter future. 3M is revolutionizing the way we help combat air pollution. #ad #science #pollution #environment #technology #CleanAir