Welcome to the Earth Hour global community!

It's Polar Bear Week, and what better way to celebrate than watching a live steam of the Annual polar bear migration from Churchill, Canada.

The team at Explore.org have teamed up with Polar Bears International and Frontiers North Adventures to broadcast the migration via a Tundra Buggy that roves the area to track polar bears during daylight hours.

Around this time every year, Churchill's polar bears gather along the shores of Hudson Bay to wait for the ice to form so they can return to their hunting grounds. Around 60% of the 20-25,000 polar bears worldwide are found in the northern areas of Canada.

But each year, the ice is forming later and melting sooner, reducing the amount of time these bears can hunt for their prey. Loss of sea ice habitat due to climate change has now become the main threat to the survival of polar bears.

According to WWF, scientists predict that we’ll lose two-thirds of the world’s polar bears by mid-century unless we take action to reduce greenhouse gas emissions, and if current warming trends continue unabated, polar bears will be vulnerable to extinction within the next century. By 2040, scientists predict that only a fringe of ice will remain in Northeast Canada and Northern Greenland when all other large areas of summer ice are gone.

Even though they might be far away us, we can all take action to help protect the habitat of these creatures and to limit the impact we're having on a warming planet.

To view the stream, check out the Tundra Buggy Cam on Explore.Org, and find out more about how you can help these incredible creatures by checking out Polar Bears International and WWF's Polar Bear conservation page.

The best hours to watch the live feed are between 10 a.m. and 4:00 pm CT.