Answer:
The role of the greenhouse effect in the past
explanation:
The heating or cooling of Earth's surface and oceans can cause changes in the natural sources and sinks of these gases, and thus change greenhouse gas concentrations in the atmosphere. ... Warmer periods coincide with periods of relatively high CO2 concentrations.
The heating or cooling of Earth's surface and oceans can cause changes in the natural sources and sinks of these gases, and thus change greenhouse gas concentrations in the atmosphere. ... Warmer periods coincide with periods of relatively high CO2 concentrations.
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