Increase of carbon dioxide level and change in fossil energy consumption: CO2 levels in the past 1000 years, based on ice sheet core records (D47, D57, Siple station, South Pole point), and CO2 levels since 1958, measured at Mauna Loa Observatory in Hawaii. Ice sheet cores were all collected on the Antarctic Continent. The smooth curve is a 100-year running average. A rapid increase of CO2 levels since the start of the Industrial Revolution is apparent, essentially in parallel with the increase in CO2 emissions originating from fossil fuels (refer to the enlarged chart since fiscal 1850). Source: IPCC (1995), translated by the Meteorological Agency. Source: Year 2000 Environmental White Paper (compiled by the Environment Agency)
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