Deutsche Well has more information on the LOHAFEX cruise, which has 9-10 days left of transit time and survey work before fertilization was originally scheduled to begin. In the mean time, the environmental effects of the project are under review. There are 20+ years of prior research on the environmental effects of ocean iron fertilization and phytoplankton blooms upon which to base this assement. It is extremely unlikely that the sinlge small-scale experiment being planned with have any lasting negative environmental effects, considering that this is a natural process that happens continuosly on a much larger scale from melting icebergs.