Greenpeace highlighted their campaign for the government to come up with an action plan to clean up our air by scaling and placing gas masks on Nelson's column and 14 other iconic statues.

Lord Nelson famously said that desperate affairs require desperate measures. 40,000 lives are cut short by air pollution every year. Researchers from King's College, University of London, found a normal day's exposure of London air can be the equivalent of smoking 15 cigarettes.

Sign the petition calling on the Prime Minister to put air pollution at the top of his agenda and come up an action plan to clean our air - Greenpeace air pollution petition