
09/01/2025
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Concrete, plastic, and technology have now reached a staggering combined weight of 1.1 teratonnes, surpassing the total mass of the biosphere, which includes plants, animals, and microbes. This unprecedented shift highlights the profound influence of human activity on Earth’s balance.
To put this into perspective, roads alone outweigh ants by a factor of 100 to 1, while the global mass of plastic has doubled the weight of all fungi on the planet. These comparisons reveal the extent to which human-made materials have come to dominate the natural world.
This transformation signals the birth of the Anthropocene — a new geological layer defined by humanity’s imprint on Earth. It represents a turning point in history where artificial matter has overtaken the natural systems that sustained life for millions of years.
Sources:
Zalasiewicz, J. The Earth After Us. Oxford University Press, 2008
Crutzen, P. The Anthropocene: The Human Epoch. Yale University Press, 2016
Waters, C.N. et al. The Anthropocene is Functionally and Stratigraphically Distinct. Science, 2016