Cyanobacteria, also known as blue-green algae, were among the first organisms on Earth to produce oxygen, helping to create an atmosphere that could support life. Now, they may help us again—this time as a sustainable construction material capable of absorbing CO₂ instead of emitting it. Watch the full documentary 'Can algae save the world?' on our channel to find out more.
#documentary #dwdocs #algae #climatecrisis
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