Global Ocean Phytoplankton in Severe Decline // Published on Feb 9, 2016
Phytoplankton are about half the global biomass, and they are the base of the ocean food chain, and produce the oxygen in every other breath you take.
In 2010 a landmark paper reported that from 1950 to 2010 the global oceans suffered a severe drop in phytoplankton of almost 1% per year (40% drop). What has happened since then; find out in this video .
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What the Earth will do to us via climate change:
 dk, Nature article is an abstract at this distant point in time, Scientific American has a good rendition here, mentioning same. Here is the recent version Paul mentions, ‘Recent decadal trends in global phytoplankton composition‘ here.