<p><strong>SF Fig. 1.10. </strong>The location of the Tropic of Cancer crossing a Mexican highway changes over time. The years on the signs show the movement of the Tropic of Cancer.</p>

SF Fig. 1.10. The location of the Tropic of Cancer crossing a Mexican highway changes over time. The years on the signs show the movement of the Tropic of Cancer.

Image courtesy of Robert González (retrieved from Wikipedia)