Report highlights environmental and economic impacts of algae threatened by climate crisis, overfishing and pollution
“They are the forests of the sea,” said Dr Aaron Eger, the study’s lead author. “If we lose these kelp forests, then we lose the oceans as we know it across massive regions all over the globe.”
They calculated the amount of nitrogen, phosphorus and carbon dioxide being absorbed by kelp forests worldwide and monetary values for each – the first time a global assessment of the value of kelp forests has been attempted. Eger said when nitrogen washed into oceans from activities on the land, such as farming and industry, this could promote the rapid growth of microscopic algae that, when it died, depleted the waters of oxygen.
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