how do we know what the temperature was 1000 years ago

how do we know what the temperature was 1000 years ago. There are some references to how do we know what the temperature was 1000 years ago in this article. If you are looking for how do we know what the temperature was 1000 years ago you've came to the right place. We have posts about how do we know what the temperature was 1000 years ago. You can check it out below.

Showing posts matching the search for how do we know what the temperature was 1000 years ago