Paleoclimate Puzzle Piece.jpg
![An image of a puzzle piece with tree rings. A part of a word is visible over the puzzle piece, but only the letters " T LOC" are visible. Below these letters is the text #EARTHDAY.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/paleo%20image.jpg?itok=e6MuA-0Q)
Detailed Description
An image of a puzzle piece with tree rings. A part of a word is visible over the puzzle piece, but only the letters " T LOC" are visible. Below these letters is the text #EARTHDAY.
Sources/Usage
Public Domain.
USGS