To study past climates, scientists use direct measurements.

Name: To study past climates, scientists use direct measurements.
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Question

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Scientists cannot use direct measurements to study past climates because instruments to measure climate variables have only been available for a relatively short period of time. Instead, they use indirect measurements and proxy records, such as ice cores, tree rings, and sediment layers, to reconstruct past climates.

To Study Past Climates, Scientists Use Direct Measurements