Departure for a round-the-world trip for Alexia Barrier The challenge taken up by Alexia Barrier is to complete a Round-the-World trip demonstrating that a sailing yacht is now capable of navigating with zero production of CO² ! An ambitious project christened “4MyPlanet”. This young sailor, a member of Monaco’s Yacht Club, has undertaken not to take on board any fossil-based form of energy throughout her 110-day voyage.