Life › Life & humans today › The Anthropocene
Industrial Revolution & fossil fuels
from c. 1760· Event· Earth, climate & extinctions
Well establishedStrong fossil, genetic or geological evidence.
The shift, starting in Britain about 1760, from muscle, wind and water power to machines driven by coal, then oil and gas.
See it on the Life map →What happened
James Watt's improved steam engine (patented 1769) drove pumps and mills, then railways and ships, while coke-fired furnaces made cheap iron and later steel. Oil (from 1859) and natural gas followed. Fossil fuels still supply about 80% of the world's energy. Burning them releases carbon that ancient plants and plankton locked away over hundreds of millions of years, from Carboniferous coal swamps to oil-forming seas.
Why it matters
It multiplied human wealth and numbers, from about 1 billion people in 1800 to over 8 billion today, and made humanity a geological force, chiefly through carbon dioxide.
Think of it like
Like spending, in about 250 years, savings that took hundreds of millions of years to deposit: huge income now, and the account does not refill.
The evidence (fossils, genes, rocks)
Production and trade records, mining statistics and the carbon dioxide record: ice cores show about 280 parts per million before 1800; direct measurements at Mauna Loa since 1958 show over 420 today.
Still debated
Why it began in Britain and not, say, China: cheap coal near the surface, high wages, colonies and institutions are all argued (see the Curious History map).
Connections (4)
▸Carboniferous coal forests made the coal that fueled Industrial Revolution & fossil fuelsWell established
The connection
Carboniferous swamp forests buried vast amounts of plant matter, which heat and pressure turned into coal seams. Britain sat on rich, easily mined seams from this age. Burning that coal ran the steam engines, iron furnaces and railways of the Industrial Revolution, releasing carbon stored roughly 300 million years ago.
When and how
Coal formed about 359–299 million years ago in what are now Britain, Europe and eastern North America; British mining, already centuries old, boomed from the 1700s.
The evidence
Fossil plants such as scale-tree bark and roots occur in and around coal seams; geologists date these Coal Measures to the Carboniferous by fossils and radiometric ages.
Debates and open questions
Why so much coal formed then: an older idea says fungi could not yet rot wood; newer work says wet tropical basins and shifting plates explain most of it.
▸Banded iron formations later supplied most of the iron ore for Industrial Revolution & fossil fuelsStrong evidence
The connection
Britain's early industry mostly smelted local ironstones found alongside coal. As steelmaking boomed from the late 1800s, it turned to banded iron formations: huge, rich deposits such as Minnesota's Mesabi Range (from the 1890s), then Australia's Pilbara and Brazil's Carajás. Today these ancient seafloor rocks supply most of the iron ore behind modern steel.
When and how
Lake Superior region (Michigan, Minnesota) from the mid-1800s; Western Australia and Brazil from the 1960s–80s. The rocks formed mostly 2.8–1.8 billion years ago.
How sure are we?
Mining and trade records show these deposits dominate world iron-ore output; geology ties the ore to banded iron layers laid down on ancient seafloors.
Debates and open questions
Whether microbes or oxygen from cyanobacteria did most of the iron rusting that formed them, and how much later weathering enriched the richest ores.
▸Industrial Revolution & fossil fuels is one proposed start of The AnthropoceneDebated
The connection
Coal, and later oil, let humans burn ancient carbon at vast scale, raising carbon dioxide, spreading soot and powering explosive population growth. When Paul Crutzen proposed the Anthropocene in 2000, he dated it to the late 1700s, when ice cores show carbon dioxide starting to climb and James Watt improved the steam engine.
When and how
Britain from about 1760, spreading to Europe, North America and Asia; Crutzen's proposal came at a scientific meeting in Mexico in 2000, then in Nature in 2002.
How sure are we?
Ice cores and air measurements show carbon dioxide rising from about 280 parts per million around 1800 to over 420 today; lake sediments record soot and fly ash.
Debates and open questions
Industry spread unevenly over two centuries, so geologists preferred the sharper, worldwide 1950s signal, and in 2024 they rejected a formal epoch altogether.
▸Industrial Revolution & fossil fuels caused Human-caused climate changeWell established
The connection
Burning fossil fuels returns long-buried carbon to the air as carbon dioxide. Since about 1850 humans have added roughly 2.5 trillion tonnes of CO2, mostly from coal, oil and gas, with forest clearing adding the rest. That has raised concentrations about 50% and trapped extra heat, warming Earth about 1.3°C so far.
When and how
Worldwide since about 1850, accelerating after 1950; Britain led early emissions, the United States has the largest cumulative total, and China now emits the most each year.
The evidence
Carbon isotopes in the air show the extra CO2 is fossil carbon, low in carbon-14 and carbon-13; emissions inventories match the measured rise.
Debates and open questions
There is little scientific dispute that it caused the warming; open questions are future emissions, how sensitive climate is, and how fast feedbacks such as permafrost thaw will act.