There are couple of petitions circulating to stop ships from flushing this substance from their holds while at sea with lethal consequences to sea birds, as demonstrated twice off our coasts this last winter

To sign visit:

https://secure.38 degrees.org.uk/page/signup/save-our-seabirds/

and

www.avaaz.org/en/petition/Save_our_Sea_Birds

You have to scroll down to the relevant petition for the second one