www.sciencedaily.com
Microscopic ocean algae, or phytoplankton, are responsible for producing a significant portion of Earth’s oxygen. However, they require iron to photosynthesize efficiently. New research shows that when iron is scarce, these organisms waste energy and their oxygen production falters. Climate-driven changes could reduce the amount of iron delivered to the oceans, weakening the base of marine food chains. This disruption may lead to fewer krill, which could subsequently impact populations of larger marine animals like whales, seals, and penguins.
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