Vladimir Vernadsky argued that life itself is a force reshaping the planet
In 1926 the mineralogist Vladimir Vernadsky proposed that living things are a geological force, as capable of remaking a planet as any volcano or glacier. He was among the first scientists to see that the oxygen, nitrogen and carbon dioxide in our air come from biological processes, and he predicted human thought would transform Earth next.
Science found him through books and starlight. Born in Saint Petersburg in 1863 and raised partly in Kharkov, Vernadsky received Darwin's On the Origin of Species and Humboldt's Cosmos from his father, while an uncle took him on long night walks to talk about the earth and the heavens. The combination steered him away from the humanities. His 1885 graduation thesis examined isomorphous mineral mixtures, and he spent 1888 to 1890 training across Europe, learning to measure the optical, thermal and electrical properties of crystals with Paul Groth's equipment in Munich. At the 1889 Paris World Exhibition he stood in for the soil scientist Dokuchaev and won a gold medal for a display of Russian soils.
His big idea built on a borrowed word. The Austrian geologist Eduard Suess had coined biosphere in 1875, and Vernadsky, who met him in 1911, gave it the sense scientists largely use today in his 1926 book The Biosphere. He described Earth developing in three stages: the geosphere of inanimate matter, then the biosphere of life, then the noosphere, in which human cognition reshapes the living world just as life once reshaped rock. The grander claims won little acceptance in the West, but the core insight made him a pioneer of environmental science and a founder of geochemistry, biogeochemistry and radiogeology.
Politics repeatedly pulled him in. He joined the liberal Constitutional Democrats, resigned from parliament when the Tsar suspended the Duma, and quit Moscow University in 1911 over reactionary government policy, after leading 65 student field trips across Russia. He became the first president of the Ukrainian Academy of Sciences, and in his last years pushed hard for Soviet uranium surveys and fission research at his Radium Institute, dying in January 1945 before a full atomic programme began.
His face now appears on Ukraine's 1,000 hryvnia banknote, issued in 2019, and a Ukrainian Antarctic station bears his name.
Source: Vladimir Vernadsky
