High CO2 Experiments (image) University of California - San Diego Share Print E-Mail Caption Lead author Jeff McQuaid watches an array of pumps designed to test the effects of high CO2 on Ross Sea phytoplankton in Antarctica. Several recent studies have noted that high CO2 has a negative effect on phytoplankton growing in low iron environments like the Southern Ocean Credit A.E. Allen Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.