by Véronique DUPONT with Stuart GRAHAM in Dundee Agence France-Presse NORTH RONALDSAY (ORKNEY), United Kingdom (AFP) – On a tiny island in Scotland’s far-flung Orkneys, thousands of sheep spend the winter munching on seaweed, a unique diet that scientists say offers hope for reducing planet-warming methane emissions. Around 60 people share North Ronaldsay — an island just over 3 miles (5 kilometres) long, ringed by rocky beaches and turquoise waters off the north coast of mainland […]