Iran began five-day, large-scale air defense war games yesterday aimed at protecting its nuclear facilities from attack. Changes in the permafrost in western Siberia are costing Russian oil companies a reported $1.9 billion every year in damage repair for infrastructure and pipelines. On the renewed appeal of the commodity uranium in an age of nuclear energy. Renault’s head predicts that Europe will be a world leader in electric car manufacture. Heritage has announced that it will sell its $1.3 billion worth of oil fields in Uganda to Italy’s Eni.