NASA: Oceans' phytoplankton numbers are trending downwards
Wednesday, September 23, 2015 - 14:20
in Earth & Climate
Brooks HaysGREENBELT, Md., Sept. 23 (UPI) -- Diatoms, the largest and most common form of the plant-like microorganisms, have declined 1 percent per year from 1998 to 2012.