Change at the Top of the World (Environment)
Marked by towering glaciers and vast expanses of tundra and open sea, the astonishing Arctic landscape exudes a feeling of immense power. But the region's ecosystem is actually one of the most fragile, and it is facing quick deterioration from man-made intrusions such as mining, oil drilling, and pollution - as well as global warming. Journey with Explore to meet the region's people and find out how these issues are affecting their time-honored way of life.