Underland: A Deep Time Journey

by Robert Macfarlane

the grounds that a god should be smarter than that.’

Anthropocene is seen to be defined by the action of anthropos: human beings, shaping the Earth at a global scale. The scientific community took the

What signatures our species will leave in the strata! We remove whole mountain tops to plunder the coal they contain. The oceans dance with hundreds of thousands of tons of plastic waste, slowly settling into sea-floor sediments. Weaponry tests have dispersed artificial radionuclides globally. The burning of rainforests for monoculture production sends out smog-palls that settle into the soils of nations. A nitrogen spike, indicated in ice-cores and sediments, will be one of the key chemical insignias of the Anthropocene, caused by the mass global use of synthetic nitrogen-rich fertilizers and by fossil-fuel burning. Biodiversity levels are crashing worldwide as we hasten into the sixth great extinction event, while the soaring number of a small number of livestock species ensures the geological posterity in the

record of sheep, cows and pigs. We have become titanic world-makers, our legacy legible for epochs to come. Among the relics of the Anthropocene, therefore, will be the fallout of our atomic age, the crushed foundations of our cities, the spines of millions of intensively farmed ungulates, and the faint outlines of some of the billions of plastic bottles we produce each year – the strata that contain them precisely dateable with reference to the product-design archives of multinationals. Philip Larkin famously proposed that what will survive of us is love. Wrong. What will survive of us is plastic, swine bones and lead-207, the stable isotope at the end of the uranium-235 decay chain.