Question

carbon dioxide concentrations in the atmosphere can be a good indicator of overall global temperatures. which method would provide an analysis of carbon dioxide concentrations in order to reconstruct past climates?

ocean temperature measurements

weather balloon data

satellite observations

ice cores analysis

Explanation:

Ice cores contain trapped air bubbles from past atmospheres. By analyzing these bubbles, scientists can determine historical carbon dioxide concentrations. Ocean temperature measurements mainly focus on ocean - related temperature data. Weather balloon data is more about current atmospheric conditions like temperature, pressure, and humidity at different altitudes. Satellite observations can give current or recent data on carbon dioxide but not as effectively for reconstructing past climates as ice cores.

Answer:

Ice cores analysis.