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Environment: understanding atmospheric and ocean flows
Environment: understanding atmospheric and ocean flows

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Described image
Figure 24 (a) The atmospheric concentration of methane, and changes in solar radiation reaching the Earth’s surface due to the Milankovitch cycles; (b) observed and expected atmospheric methane levels over the last 11 000 years up to 1937

 4.3 Carbon dioxide (CO2), methane (CH4) and human activity