Parliament CO2 Omissions Are Amongst Britain's Worst

Energy Advisers have revealed that the Palace of Westminster and the Bank of England are among the public buildings with the worst energy efficiency in the country.

Around 18,000 buildings, including town halls, museums, schools and job centres, are being tested to discover their energy efficiency on a sliding scale where A is the best and G is the worst.

The Palace and the Bank of England both scored a G. and together, they consume enough electricity and gas to pump out 21,356 tonnes of CO2 a year, the equivalent of more than 14,000 people flying from London to New York.

Other building's also scored badly including London's City Hall which scored an E despite opening in 2002 and being described by its architect Foster & Partners as a "virtually non-polluting public building". The Treasury's headquarters on Horse Guards Parade scored the same despite a complete office refurbishment six years ago that was supposed to "set new environmental standards in Whitehall".

In Salford, the Imperial War Museum North, designed by Daniel Libeskind and opened in 2002, scored a G, the same as its 91-year-old sister museum in London.