What is the Biological Pump?

Introduction Scientists have underestimated the efficiency of the biological pump for centuries. A recent study from Woods Hole Oceanographic Institution, a US research institute dedicated to studies in the marine sciences, has revealed this. Before the industrial era, the ocean was a major producer of carbon dioxide, not a carbon sink. However, the study suggests that the ocean is currently overwhelmed and needs a savior. So, what is the biological pump?