Troubled by a history of uranium mining, the Sahtu Dene of Great Bear Lake create North America's largest biosphere reserve to protect its pristine waters for all of humanity.

Quebec's Manicouagan-Uapishka Biosphere Reserve prides itself on working with industry toward a sustainable future. But their dream is put to the test when their biggest project is jeopardized by North America's largest hydro-electricity reservoir.

In Ontario's Niagara Escarpment Biosphere Reserve, scientists, climbers and even quarry companies come up with innovative ways to co-exist with, restore and enhance the natural world.

After suffering through repeated, tsunami-like floods north of Manitoba's Riding Mountain, the Von Bargens lead the call to restore nature's flood protection systems.

Following unprecedented droughts, the people of BC's Mount Arrowsmith Biosphere Region begin their quest to restore the water balance.

The yellow perch, a key indicator of the health of Quebec's Lac Saint-Pierre, is in serious trouble. But this little fish is inspiring the big change needed to restore the lake to its former glory.

A little-known, but remarkable region of wetlands, called the Beaver Hills, are at risk of being swallowed by a growing Edmonton. As home to the world's most important herd of buffalo, people here are uniting to keep the Hills intact.

The heart of eastern North America's last, great forest corridor is threatened by development, but the people of Ontario's Frontenac Arch Biosphere Reserve are determined to keep it intact.

Under siege from invasive species, the people of the Southwest Nova Biosphere Reserve innovate new ways to hold back, eradicate, and even eat the invaders.