Britains Big Freeze continues to grip parts of the country with forecasters predicting more heavy snowfalls for later in the week. The blizzards are thought to have cost the economy as much as £3.5 billion as London and other major cities ground to a halt. Millions of adults were forced to stay off work for a second day as around 6,000 schools remained closed in Bradford, Birmingham, Bristol, Surrey, Kent, Hertfordshire, Essex, London, Devon, Cornwall, Gloucester, Oxfordshire, Buckinghamshire, Berkshire and the Borders. Wales was also badly affected with hundreds of schools closed and bus services in South and West Wales largely cancelled. Schools Secretary Ed Balls said any inconvenience to parents as a result of school closures was "really regrettable".