The clock has moved one minute away from midnight—the longstanding symbol for the end of civilization—signaling the possibility that "we are poised to bend the arc of history toward a world free of nuclear weapons."
Jonathan Schell, a leader of the anti-nuclear movement, offers motivation and tactical advice to the new generation of climate activists.
California residents stand to gain a lot from the state's efforts to cap greenhouse gases: less pollution, greener infrastructure, and a yearly check in the mailbox.
Healthy, local food for all kids? "Renegade Lunch Lady" Ann Cooper is starting a revolution in school cafeterias.
"Renegade lunch lady" Ann Cooper on what we're teaching kids about food and nutrition—and how to change it.
In a broad new study, scientists conclude that the impacts of mountaintop removal are "pervasive and irreversible."
Sustainable, small-scale working forests are feeling the economic pinch. But nonprofit groups are helping family- and community-owned woodlands thrive by connecting them with carbon markets.
An EPA rule requiring large polluters to report greenhouse gases went into effect December 29, 2009.
Quote from The Lorax by Dr. Seuss and images from Chris Jordan's stunning series on America's obsession with consumption, Intolerable Beauty, with a note to educators.
These curricula are bursting with impressive lessons, experiments, and visual tools to guide your students in their exploration of climate change and the influence of common plants on human kind.