claim: By that time CO2 emissions had already risen from the expanded use  of coal that had powered the industrial revolution, and emissions only  increased slowly from 3.5gigatonnes in 1910 to under 4gigatonnes by the  end of the Second World War.
evidence: Since the Industrial Revolution anthropogenic emissions – primarily from use of fossil fuels and deforestation – have rapidly increased its concentration in the atmosphere, leading to global warming.
category: Carbon dioxide