The Thames Estuary is an enormous environmental asset for Essex and Kent, a home to thousands of birds, fish, seals, and insects. We the undersigned call on the Government to reject the proposals made by Boris Johnson and Lord Foster to concrete over large areas of the estuary to build an enormous, seven days a week, twenty-four hours a day airport, with potentially devastating impact on the local environment, on carbon emissions and on noise pollution right across the Estuary.