Bloomberg: The U.K. will narrow by half the number of proposals to generate 5 percent of its energy from tides that sweep up the Severn River, the country’s longest waterway. Energy and Climate Change Secretary Ed Miliband on Jan. 26 will cut the list of technologies and locations for a possible project to five from the 10 announced in July and put them out for public review, a Department of Energy and Climate Change spokeswoman said today in an interview. Atlantic Ocean tides that push …