Chronicle Herald: The plant life of the oceans, called phytoplankton, is disappearing, according to Dalhousie University researchers who announced their results this week. The three-year research project was conducted by PhD student Daniel Boyce and professors Boris Worm and Marlon Lewis. They concluded that the phytoplankton population has dropped globally by about 40 per cent since the l9th century. The implications for the rest of the marine ecosystem could be disastrous but many questions …