Filed under: Activism , Europe , Switzerland , Transportation While Boeing and Airbus scramble to make larger, more luxurious planes, others are pushing the envelope in different directions, attempting to find ways to make them more energy efficient and environmentally friendly. Take the Solar Impulse for instance. This plane is setting the bar high, with a plan to circumnavigate the globe completely under solar power. The Solar Impulse is the brain child of Bertrand Piccard, a Swiss a