Agence France-Presse: A new plant that produces gas from wood was opened in Austria on Wednesday, paving the way towards new possibilities in renewable energy. According to its backers, the gas produced at the plant can be used in urban heating systems, for gas-powered cars or by power stations that work on gas. “We still need fossil fuel of course, but this plant shows what is technically possible,” Austria’s Environment Minister Nikolas Berlakovich said at the plant’s inauguration. The …