Here are three Canadian articles about what scientist are calling 'a poorly designed research experiment' in which 100 tonnes of iron sulfate and iron oxide were dumped into the pacific in an attempt to enhance salmon stocks.  The oldest article calls the act “geo-piracy”.

http://www.vancouversun.com/technology/Iron+fertilizing+experiment+took+place+worst+possible+spot+scientists/7436066/story.html

http://www.timescolonist.com/health/Replacing+iron+pollution+village+says/7421665/story.html

http://www.ctvnews.ca/canada/scientists-warn-iron-dump-could-have-serious-consequences-for-ocean-1.1003425