Government inaction, in what culminated in the fiasco of the 2009 Copenhagen climate conference, has made climate change a cause synonymous with depression and hopelessness for a long time.
But those days are over. Today, the global climate movement is bigger and broader than ever, bursting with energy and determination. The world took notice as people around the globe stood up for action on climate change last September.

NYC climate march. Demotix/Andre Spatz. All rights reserved.