Independent (UK): Freezing air from the Arctic and Siberia trapped over the UK will bring snow and sub-zero temperatures this week, experts warned yesterday. Temperatures may drop to -10C in England and Wales, with the possibility of temperatures as low as -16C, the Met Office said. Coldest will be the Midlands and North-west England. But in Scotland, where temperatures have already hit -18C, the beleaguered ski industry is enjoying its best season for years. Snow showers blew across the rest of …