The Good Men Project Become a Premium Member We have pioneered the largest worldwide conversation about what it means to be a good man in the 21st century. Your support of our work is inspiring and invaluable. Human Handiwork’s Mass Exceeds World Lifeforms Human handiwork, all we’ve produced, now outweighs the plants and animals evolved over 3 billion years: a global takeover. By Tim Radford Our domination of the planet may have just reached a new level: human handiwork now probably surpasses all that evolution has placed on the Earth. 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.