Greta Thunberg hitches low-carbon ride across Atlantic

HAMPTON, Va. -- Swedish teen climate activist Greta Thunberg left North America on a return trip across the Atlantic on Wednesday, hitching a renewable-energy ride with an Australian family aboard their 48-foot (15-meter) catamaran. Thunberg tweeted that they set sail from Virginia after the family answered her urgent appeal for a ride back to Europe, where she hopes to arrive in time for the United Nations climate meeting that was moved to Madrid in early December. They left shortly before 8 a.