Methods to Detect Climate Change [photo]

Figure 5: Scientific methods used to detect climate change; a. & b. rooftop weather stations, c. instruments attached to hot air balloons which rise high in the air and descend, making measurements throughout the flight, d. satellite photographs and measurements of storm events, e.—i. collection of ice cores for paleoclimate analysis of trapped air bubbles, and j. analysis of tree rings.1

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