Here is the article.

An except:

The incident has prompted an investigation by Canadian environmental officials, and in the United States, the National Oceanic and Atmospheric Administration said it was misled into providing ocean-monitoring buoys for the project.

The entrepreneur, Russ George, said his team scattered 100 tons of iron dust in mid-July in the Pacific several hundred miles west of the islands of Haida Gwaii, in northern British Columbia, in a $2.5 million project financed by a native Canadian group.

The substance acted as a fertilizer, he said, fostering the growth of enormous amounts of plankton. He said that could help the project meet what it casts as its top goal: aiding the recovery of the salmon fishery for the native Haida people. Mr. George said the team remained at sea for several months monitoring the plankton growth.