Daily Princetonian News Photos

<a href="http://www.dailyprincetonian.com/frontpage/2009/10/26/snapshot/"><i>The Daily Princetonian,</i> October 16, 2009 - Front Page Standalone</a>

Caption: Students gather behind Campus Club as part of celebrations of the 350 International Day of Climate Action this past Saturday. This number represents the concentration of atmospheric C02 that scientists believe must be reached to avoid catastrophic climate change.

33 / 47

The Daily Princetonian, October 16, 2009 - Front Page Standalone Caption: Students gather behind Campus Club as part of celebrations of the 350 International Day of Climate Action this past Saturday. This number represents the concentration of atmospheric C02 that scientists believe must be reached to avoid catastrophic climate change.