Furthermore, multi-decade time series, including the Hawaii Ocean Time Series, the Bermuda Atlantic Time Series, and the California Cooperative Oceanic Fisheries Investigations, also showed increasing phytoplankton biomass during the past 20-to-50 years.

FORBES: Another Global Warming Crisis Canceled For Lack Of Evidence

There have been some unexpected responses, for instance markedly different phytoplankton communities and total biomass resulted from two iron addition experiments conducted a year apart at the same site in the north west Pacific Ocean.

UNESCO: MEDIA SERVICES