Agence France-Presse: Sweden’s government on Wednesday presented what it described as Europe’s “most ambitious” strategy to improve energy efficiency and cut greenhouse gas emissions. “As the first industrialised country, we are presenting a concrete plan towards becoming independent of fossil fuels and reducing emissions to a level that the climate requires,” Environment Minister Andreas Carlgren said. The government said it now aims by 2020 for renewable energy to comprise 50 percent of all energy …