what things tell us what the climate was like hundreds of years ago?

Question

Weather

Answer 1

There are several things that can tell us what the climate was like many years ago. These include rock formations, ocean sediment cores, soil cores, tree rings, and pollen in amber.

Answer 2

One of the main things is the coal plant fossils. Where do u think all that gas,oil,and coal came from. It is from plants.