Dan Parker aims to capture the world altitude record by flying to 31,051 feet in an aircraft he designed and built, and which weighs less than 200 kilograms. We checked in on him to see how things are progressing.
One plane, one pilot, 5 tons of garbage: How Jeremy Rowsell plans to crisscross the globe in a Cessna 172 powered by fuel made from recycled plastic. By Dean Sigler.