Sentences with phrase «polar bear activities»

Not exact matches

Some argue that, since it is illegal to engage in activities that could harm or kill threatened or endangered species, Americans should be forced to cut their greenhouse gas emissions to preserve polar bear habitat.

By shedding light on potential mechanisms that facilitated that bear's survival during her long swim, as well as the overall metabolism and activity of bears, the current study «profoundly contributes to understanding the value of summer habitats used by polar bears in terms of their energetics,» Harlow says.

Some earlier research suggested that polar bears could, at least partially, compensate for longer summer food deprivation by entering a state of lowered activity and reduced metabolic rate similar to winter hibernation — a so - called «walking hibernation.»

Perhaps many too many leaders of the global political economy are spurning the moral obligations, responsibilities and duties associated with their stations in life by turning a blind eye to the gigantic scale and anticipated growth of human over-consumption, overproduction and overpopulation activities that can be seen precipitating the extirpation of species like the polar bear, the reckless dissipation of non-renewable natural resources and the drastic degradation of the environs of our planetary home.

As I said before, much of what is known about polar bear behavior has been through some human observation, but for the most part, their activities have been based on assumptions.

I have also accepted these professionals» best scientific and legal judgments that the loss of sea ice, not oil and gas development or subsistence activities, are the reason the polar bear is threatened.

Last summer, government scientists predicted that, as a result of climate change, polar bears may disappear from the U.S. and its waters entirely by 2050 — and that estimate doesn't even take into account potential effects from new oil and gas activities.

While Mr. Kempthorne and Dale Hall, director of the Fish and Wildlife Service, said Wednesday that they saw no separate risk to polar bears from oil and gas activity, the latest assessment of the species for the International Conservation Union, by a group of experts including Fish and Wildlife Service biologists, did include such activity in a list of threats, including toxic contaminants, shipping and recreational viewing.

«Scientists are also unnerved by the summer's implications for the future... proof that human activities are propelling a slide toward climate calamity... humans may have tipped the balance... a particularly harsh jolt to polar bears.»

«Drilling and associated industrial activity would put polar bears, caribou, migratory birds and hundreds of other species that live on the coastal plain at incredible risk, while also threatening the livelihood of the native Gwich «in people, whose culture and way of life depends on these resources,» she continued.

Since the ESA forbids the Federal Government from funding any activities which might harm a listed species, why not sue to prevent the ridiculous Federal subsidies on Ethanol, on the grounds that the production, distribution, and use of ethanol have a net negative impact on carbon dioxide emissions when compared with petroleum products, thus accelerating global warming and further endangering the polar bears.

«Loss of habitat directly impacts polar bears, seals and walruses, which use the ice for foraging, reproduction and resting, and for also for people who use ice for hunting, travel and other activities.»

Besides shrinking sea ice there are currently also other factors that negatively affect polar bears, such as human settlements, industrial activities, hunting, bio-accumulation of toxins, and smaller seal populations.