A satellite image of a phytoplankton bloom stretching across the Barents Sea off the coast of mainland Europe&amp;#8217;s most northern point, Cape Nordkinn. Free-floating phytoplankton highlight the whirls of ocean currents in spectacular shades of blue and green. These microscopic marine organisms that drift on or near the surface of oceans and seas have been called &amp;#8216;the grass of the sea&amp;#8217; because they are the foundation of the oceanic f