Examines whether human impact has tipped the planet into a new geological epoch, the Anthropocene, with all of its political, social and behavioral implications.

When the graves of former slaves are bulldozed in Mississippi, a Boston teacher returns home to protect the community his ancestors settled.

Explores the sea change in national attitude from pride in big dams as engineering wonders to the call for dam removal as awareness grows that our own future is bound to the health of our rivers.

Pierre Dansereau, ecologist, visionary and inveterate optimist, believes that while the environment may be threatened by human beings, it will also be saved by them.

A global survey of the impacts on cultures, economies, and the environment of the most powerful globalizing force of our time: tourism.

Can a mega-city mobilize its 22 million citizens to become water sustainable?

Acclaimed architect Jan Gehl and his team are on a humanistic mission to reclaim public space in mega cities for pedestrians (and cyclists) rather than cars.

A 25-year battle in Canada's iconic Jumbo Valley pits developers of a large ski resort against conservationists, backcountry skiers and First Nations, who revere it as home of the grizzly bear spirit.

Filmmakers and food lovers Jen and Grant dive into the issue of food waste from farm, through retail, all the way to the back of their own fridge.

Angela Sun reveals the effects of our rabid plastic consumption as she investigates The Great Pacific Garbage Patch.