Huffington Post: As Congress dithers for the umpteenth time over extending a key subsidy for wind energy, the industry once again is up in the air. Called the production tax credit (PTC), the subsidy helps level the playing field between wind and fossil fuels and has proven to be critical for financing new projects, helping to make wind one of the fastest growing electricity sources in the country. Given the planet needs to transition as quickly as possible away from coal and natural gas to carbon-free energy to...