Agence France-Presse: Oil-rich Gulf Arab states enjoy year-round sunshine but they remain slow in adopting environmental technologies to let them harvest their abundant solar power, industrialists said Tuesday. “They should act, instead of talking about it,” said Stefan Muller, the managing director of Asia Pacific region at Conergy, the German producer of solar and wind power technologies, who is promoting his company’s products in the World Future Energy Summit and Exhibition in Abu Dhabi. “These …