Plants outweigh all other life on Earth

Science | AAAS | 5/21/2018 | Staff
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Plants pack more heft than any other kingdom of life on the planet, making up 80% of all the carbon stored in living creatures. That’s just one surprise in a comprehensive new survey of Earth’s biomass, which finds that groups with the greatest number of species—such as arthropods—aren’t necessarily the heaviest.

Measured in terms of carbon content (to factor out variable components like water), all life on Earth weighs about 550 gigatons. Of that, plants make up 450 gigatons of carbon (GT C), followed by bacteria at 70 gigatons and fungi at 12 gigatons, scientists report today in the Proceedings of the National Academy of Sciences. Animals comprise a mere 2 gigatons, of which half are arthropods—including...
(Excerpt) Read more at: Science | AAAS
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