Business Green: Deputy Prime Minister Nick Clegg today promised the coalition government would oversee a “quiet green revolution” that avoids “green gimmicks” and instead focuses on delivering low-carbon jobs. Speaking at an event in the North East hosted by business advisory firm TEDCO, Clegg aimed a thinly veiled swipe at the previous government, insisting the coalition would avoid making headline-grabbing environmental claims. “All politicians have warm words on the environment, and all …