More than half of the oxygen in the Earth's atmosphere comes from algae! While we often think of trees as the main producers of oxygen, these microscopic algae in the ocean, like phytoplankton, are actually the real oxygen powerhouses. Every second breath you take? Thank algae for that!
Institute of Plant Molecular Biology, Biology Centre CAS & Faculty of Science, University of South Bohemia in České Budějovie
Department of Water Quality, Centre for Health and the Environment, National Institute of Public Health