Human-Made Materials Now Weigh More Than All Life on Earth Combined (2020)
A recent study reveals that human-made materials now outweigh all life on Earth combined, reaching 1.1 trillion tons in 2020. This significant mass is primarily composed of concrete, steel, and plastic, with urban development and consumption driving the trend. The findings underscore humanity's dominant role in reshaping the planet and highlight the urgent need for responsible resource management.
- ▪Human-made materials have surpassed the mass of all living things on Earth, totaling 1.1 trillion tons.
- ▪Concrete, steel, and plastic are the primary contributors to this mass, with plastic alone weighing double that of all animals combined.
- ▪The study suggests that at the current rate of production, human-made materials could triple the mass of all living things by 2040.
Opening excerpt (first ~120 words) tap to expand
Human-Made Materials Now Weigh More Than All Life on Earth Combined People produce 30 billion tons of material annually, making our built environment heavier than the planet’s biomass Rasha Aridi | Daily Correspondent December 11, 2020 ShareCopy linkEmailSMSFacebookXRedditLinkedInBlueskyPrintAdd as preferred source Concrete, a building block of our cities and towns, accounted for the most mass, followed by steel, gravel, brick and asphalt. Anthony Quintano via Flickr under CC BY 2.0 Collectively, humans have a gargantuan ecological footprint—and the evidence is all around us. Forests are razed down to build highways, cities keep growing taller and wider, roads are paved to accommodate millions of cars and plastic pollution has permeated every ecosystem on Earth.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Smithsonian Magazine.
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