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A recent 6-year-long study found that polar bears can swim for great distances. GPS collars were attached to 20 female bears, some with cubs. The swims documented lasted from 17 hours to nearly 10 days and covered between 33 and 427 miles (54 and 687 kilometers) in the southern Beaufort Sea above Canada and Alaska.
There are no earlier studies on polar bear swims, but there has not been enough open water in recent years for bears to swim such distances.
Polar bears rely on sea-ice in the Arctic to hunt their prey, seals, but this ice is melting earlier every year. Scientists fear that cubs especially will not survive long swims. Twelve of the 20 bears had cubs when the collars were fitted, but when 10 of the 12 were recaptured a year later, only 6 still had cubs.
U.S. Geological Survey (link below).
What else can I help you with?
What kind of resource is global warming?
It is not a resource. It is a dangerous phenomenon.
How is wind energy?
There are no dangerous carbon emissions to cause global warming
What type of global warming is it?
The dangerous type caused by the enhanced greenhouse effect.
Where are rhinos protected from poaching but not the dangerous impacts of global warming?
Rhinos are afforded protection by law from poaching everywhere they exist. Sadly, they are not always protected well enough. Nowhere are they protected from the dangerous impacts of Global Warming.
Groups of people that think global warming isnt dangerous?
1st. that's not a question, it's a statement 2nd .Global warming doesn't exist 3rd this answer is kind of bad
Is global warming positive or negative?
Negative, because sea levels are rising, forcing inland migration and very high temperatures.
Does every country use global warming?
Global warming is regarded as an undesirable and dangerous phenomenon; nobody is using it, we are trying to avoid it, but every country is experiencing it, in one way or the other.
Which is more dangerous hydrocarbons or hydrogen fuel?
Dangerous in what way? hydrogen just being burned does not contribute to global warming, but what about 'making' the hydrogen? Does that use other fuels that contribute to global warming? Hydrogen is more explosive if that is what you mean by dangerous. Hydrocarbons burn to form carbon dioxide which contributes to global warming.
Is global warming or nuclear fuels more dangerous?
Both global warming and nuclear fuels have potential dangers. Global warming can lead to widespread environmental disruption and impact ecosystems. Nuclear fuels carry the risk of catastrophic accidents like meltdowns and long-term environmental contamination, but also provide low-carbon energy that can help mitigate global warming. Both issues require careful consideration and management to minimize risks.
What can be dangerous to people who live hundreds of miles from an erupting volcano?
Volcanos contribute to global warming.
How dangerous is it when a cow farts?
The gas emitted from both ends of a cow is methane, which is a dangerous greenhouse gas, twenty-one times more powerful than carbon dioxide. Methane is causing additional global warming. And it's dangerous to stand too close with a cigarette or a naked flame!A cows fart is dangerous as it produces methane gas. Which is contributing to global warming
Which of the following global issues dose the 1997 Kyoto protocol address?
global warming!!!!!!
