Small marine organisms could dramatically impact our climate 
In the future, warmer waters could significantly change ocean distribution of populations of phytoplankton, tiny organisms that could have a major effect on climate change. This week researchers reported that by the end of the 21st century, warmer oceans will cause populations of these marine microorganisms to thrive near the poles and shrink in equatorial waters. In tropical oceans, there could be a 40 percent drop in potential diversity of phytoplankton from a poleward shift in species thermal niches. 
Image: NOAA 
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