Reuters: Britain will miss its ambitious 2050 target for an emissions cut by decades unless it reassesses its course, the Institution of Mechanical Engineers said on Friday. Last year, Britain passed the Climate Change Act, aimed at cutting its greenhouse gas emissions by 80 percent by 2050 from the 1990 level to help mitigate global warming. "A realistic date to achieve the 2050 targets, based on current policy, is 2100 at the earliest — some 50 years later than targeted," said the …