2015 - Earth Day’s 45th anniversary - could be the most exciting year in environmental history. The year in which economic growth and sustainability join hands. The year in which world leaders finally pass a binding climate change treaty. The year in which citizens and organizations divest from fossil fuels and put their money into renewable energy solutions. These are tough issues but we know what’s at stake is the future of our planet and the survival of life on earth.

Visit the United Nations Earth Day web page.

Photo credit: UNEP (Flickr).