1. RENEWABLE ENERGY
Solar Impulse 2 pilot: 'We are at the limit of the technology'
The sunlight-powered journey around the world ended in the dark as pilot Bertrand Piccard landed the Solar Impulse 2 aircraft at 4:05 a.m. local time on July 26 in Abu Dhabi, United Arab Emirates. The trip fulfilled a 16-year-old ambition to fly around the world without fuel, and the project team hopes it will drive the world to set more ambitious targets for clean energy and emissions reductions. However, the aviation sector will need more than a sunny disposition to follow its lead in clean flight.