The global fuel mix will continue to diversify, with increased emphasis on alternative energy by 2030 "for the first time nonfossil fuels will be major sources of supply growth," said analysts at BP PLC.World energy growth over the next 20 years likely will be dominated by the emerging economies of China, India, Russia, and Brazil while energy efficiency improvements accelerate, they said in the recently published "BP Energy Outlook 2030."The BP report's base case indicates primary energy use growing nearly 40% in the next 2 decades, with 93% of the growth coming from countries outside the Organization of Economic Cooperation and Development. Non-OECD countries are exp...