Polar bears will be wiped out by the end of the century unless more is done to tackle climate change, a study predicts. Scientists say some populations have already reached their survival limits as the Arctic sea ice shrinks. As the ice breaks up, the animals are forced to roam for long distances or on to shore, where they struggle to find food and feed their cubs. Polar bears are listed as vulnerable to extinction by the International Union for Conservation of Nature IUCN , with climate change a key factor in their decline.
Effects of Global Warming - Words | Help Me
Millions have seen the heart-wrenching video of a polar bear clinging to life , its white hair limply covering its thin, bony frame. Because of melting sea ice, it is likely that more polar bears will soon starve, warns a new study that discovered the large carnivores need to eat 60 percent more than anyone had realized. Turns out they are high-energy beasts, burning through 12, calories a day—despite sitting around most of the time, according to a unique metabolic analysis of wild bears published Thursday in Science. Polar bears rely almost exclusively on a calorie-loaded diet of seals.
Global Warming and Human Population
These problems include worldwide climates change, which will eventually lead to environmental chaos. These greenhouse effects are especially felt in the Arctic. They trap gases that capture and hold heat in the atmosphere, causing the Arctic to warm up and the ice to melt. Without proper action towards decreasing the effects of global warming, Earth and its inhabitants will face several environmental and security difficulties in the near future.
The hundreds of polar bears that gather each year on the west coast of Hudson Bay for a seal hunt may be in for a long, hungry wait. This year is on track to be the worst on record for the formation of Arctic sea ice, which the bears rely on for the hunt, according to Alysa McCall, director of conservation outreach and a staff scientist at Polar Bears International. Satellite imagery shows there is still a lot of open water in the Arctic.