"Our domination of the planet may have just reached a new level: Human handiwork, all we’ve produced, now outweighs the plants and animals evolved over 3 billion years: a global takeover. The mass of all the things made by humans − cities, roads, factories, houses, cars, trains, machines, bricks, concrete, steel, glass, tile, asphalt and so on − may have just overtaken the mass of all the living things on the planet. If current trends continue, anthropogenic mass, including waste, is expected to exceed 3 teratonnes [3tn tonnes] by 2040 − almost triple the dry biomass on Earth"