The government must continue to fund coastal defence projects to prevent the "completely unacceptable" loss of 25 square miles of the Broads to the sea.
That was the plea from the 1600-strong Broads Society today, which said it was "extremely concerned" to learn of proposals being considered by government conservation advisers Natural England to abandon coastal defences and allow the Upper Thurne and its broads to flood.
It came as an online Save the Broads petition, on Prime Minister Gordon Brown's 10 Downing Street website, clocked up more then 1200 signatures.
Click here to read more on the Broads Society's response.
Click here to read today's Great Yarmouth Mercury story on the latest.
Click here to sign the online petition.