Business Green: The global economic recession will fail to halt hybrid vehicles’ march into the mainstream, according to a new report from auto industry research firm R.L. Polk & Company. The study predicts that by 2012, one in 20 new vehicles sold in North America and Europe will be a hybrid model as customer concerns over fuel efficiency and carbon emissions continue to mount. That would represent significant growth in demand for hybrids, which currently account for just 2.8 per cent of …