You are here

How Do We Know Climates Changed?

How Do We Know Climates Changed?

How Do We Know Climates Changed? Lorem Ipsum this is the teaser text.

Among the major sources of evidence are sediment cores from the ocean bottom. They preserve fossils of tiny organisms called foraminifera. By measuring oxygen in the skeletons of these organisms, scientists can calculate fluctuations in temperature and glaciers over millions of years.

Resource Type: 
How Do We Know