The bears are waiting for the ice to return.
Alysa and her team are in a tundra buggy and are able to watch bears in safety.
It's called the "polar-bear capital" of the world because of it's location.
The proximity of the polar bears to the town has an effect on day-to-day life. There are bear-proof rubbish bins in the city and the province has bear-proof guards for trick-or-treating.
It is a common practice for people to leave their parked cars unlocked so they can run if they see a bear.
Bears use the sea ice as a platform to hunt seals in Hudson Bay.
Bears can't hunt for long periods in the sea-ice-free season.
At the UN biodiversity summit in Montreal, world ministers are trying to reach an agreement that will protect wild spaces and reverse the human driven loss of nature.
The plight of the polar bear is an example of the link between protecting the natural world and fighting global warming. The capital of the world is getting too warm.
The length of the season during which there is no ice could push bears to the point of starvation by the year 40.
It forms later and later and breaks up earlier and earlier in the spring over the last couple of decades.
With warming, this season in between where the bears are on land and can't take advantage of those hunting opportunities is getting longer and longer.
Bears rely on seals for food. It is necessary for mothers to consume enough fat to raisecubs.
Without sea-ice, we begin to see impacts on their reproductive success. We are likely to see declines because they can't reproduce successfully any more.
The omnivorous predator will eat just about anything they can find on land, including berries, eggs, small rodents and even reindeer.
There are places where polar bears and people coexist that are riskier for both.
A US Geological Survey study shows that the time polar bears spend in Alaska has grown significantly in the last 50 years.
In the 1980s, polar bears only spent a couple of weeks on shore each summer.
Many spend two months on the beach each year.
Bears have been seen in Alaska's North Slope earlier.
The fate of Hudson Bay's hundreds of polar bears is dependent on what every country in the world does to reduce emissions of the planet-warming gases that are changing this place so rapidly.
The sea-ice projections are dependent on the temperature and how much greenhouse gas we emit into the atmosphere.
There is a relationship between how much we emit and what happens to the sea-ice and bears.
Less access to sea-ice has led to a decline in the western Hudson Bay bear population.
She says that they are warning about what to expect for polar bears that live farther north.
Climate change has changed the way we think about conservativism.
He says that it is pervasive on the planet.
Setting up a national park isn't bad, but it won't help if the environment changes because of climate change.
If you care about animals, you have to care about climate change as well.
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