How marine algae could help feed the world

Microalgae (shown here, Haematococcus) convert water and carbon dioxide to oxygen and nutritious biomass in the presence of light. Credit: Algaennovation, CC BY Our planet faces a growing food crisis. According to the United Nations, more than 800 million people are regularly undernourished. By 2050, an additional 2 to 3 billion new guests will join the planetary dinner table.

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