Polar Lights Model Kit – Captain America | Lake City Hobbies
Polar Bear Watching Trips: Tailor-Made Ideas and Group Tours | Wildlife Worldwide
Map of where bears live in North America
Life on the edge: Iñupiat communities and polar bears on Alaska's wild North Slope | National Geographic
US braced for -50C temperatures as polar vortex bites
In the Arctic National Wildlife Refuge, polar bears and oil drilling do not mix | Environment America
Polar Vortex Building in North America
In pictures: Polar vortex strikes North America - BBC News
Weakening polar vortex may yield longer, harsher winters in North America | AccuWeather
The U.S. is about to get a potent polar vortex blast - Science
Environment America takes legal action to protect polar bears in Alaska | Environment America
See all 70 polar bears in North American Zoos (interactive) - oregonlive.com
Arctic Weather Plunges into North America
In pictures: Polar vortex strikes North America - BBC News
What Does 'America First' Look Like in the Arctic? | RAND
America and Russia work together during challenging times | WWF Arctic
Polar vortex: cold that has killed dozens to give way to 'spring-like' weather | US weather | The Guardian
americas-arctic-a-refuge-imperiled Off the Fence
Weakened 'polar vortex' blamed for N. American chill
Polar Imperative: A History of Arctic Sovereignty in North America by Shelagh D. Grant
Polar Bear Facts: Animals of North America - WorldAtlas
From Trout to Polar Bears: How the Environmental Movement Lost America - The American Conservative
Polar Bears Migrate from America to Russia as Temperatures Rise
What is the polar vortex – and how is it linked to climate change? | US weather | The Guardian
Polar Vortex Building in North America
