They collect ice cores in many locations around Earth to study regional climate variability and compare and differentiate that variability from global climate signals. The samples they collect from the ice, called ice cores, hold a record of what our planet was like hundreds of thousands of years ago.
Answer:
es la ciencia natural que estudia la composición y estructura tanto interna como superficial
Explanation:
Energy from a source that is not depleted when used, such as wind or solar power.
