A multinational team of geologists has made the first estimate of the sheer size of the physical structure of Earth’s technosphere — suggesting that its mass approximates to 30 trillion tons. The research is published in the Anthropocene Review. Earth’s technosphere now weighs some 30 trillion tons — a mass of more than 50 kg for every sq.m of the planet’s surface, according to Jan Zalasiewicz et al. The technosphere is the idea...
