What instrument measures climate change?

Answer 1

No one instrument. Scientists use data from satellites, weather balloons and buoys, thermometers, wind anemometers and many other instruments. Historical records are very important also. Climate change is very hard to quantify or measure. Some scientists have measured changes in climate with certain environmental markers as tree rings, ice cores, and temperature monitoring stations.

Answer 2

Instruments such as thermometers, satellites, buoys, and weather stations are commonly used to measure climate change indicators like temperature, precipitation, sea surface temperature, sea-level rise, and greenhouse gas concentrations in the atmosphere. These instruments provide data that scientists use to monitor and study changes in Earth's climate over time.