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Biomass - Earth Online
Human materials outweigh Earth's biomass; will double by 2040
Wild mammals make up only a few percent of the world's mammals
Visualizing the Biomass of All the World's Mammals
More human stuff than all living biomass? – Sciworthy
Human 'stuff' now outweighs all life on Earth, Science
Humans are using up earth's biomass
Humans Make Up a Teeny-Tiny Percentage of the Earth's Biomass
Humans account for little next to plants, worms, bugs – The Denver