Will circular runways ever take off? BBC News
Could circular runways be the future of air travel? Aviation expert Henk Hesselink of the Netherlands Aerospace Centre believes so. A film for BBC World Hacks … source
Can plastic roads help save the planet? BBC News
Engineer Toby McCartney explains how his Scottish start-up MacRebur is persuading councils to use local waste plastic to build roads. Two English councils have already started building roads… source