Sentences with phrase «polar bear habitats»

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.

It is pushing for new oil and gas drilling in polar bear habitat while biologists for Interior Department, prodded by legal action, recommended the bear be given threatened status under the species act because of the warming of the Arctic and summer retreat of sea ice.

U.S.G.S. reports forecasting strong declines in polar bear habitat and numbers were keys to that decision.

The next step is to secure the long - term survival of the species by ensuring that the polar bear habitat in the Beaufort and Chukchi Seas is protected from the threat of oil and gas drilling.

Here's where the rubber hits the road: even while the Interior Department was slowly taking steps to give these bears ESA protection, the Bush Administration opened almost 30 million acres of polar bear habitat to oil and gas exploration, a move that by their own admission threaten polar bears.

She and other Alaska elected officials fear a listing will cripple oil and gas development in prime polar bear habitat off the state's northern and northwestern coasts.

I wondered what the similarity in extent for 2013 and 2009 might tell us about polar bear habitat development over the next month or so.

Detrimental effects include loss of polar bear habitat and increased mobile ice hazards to shipping.

However, according to NSIDC Masie figures, polar bear habitat at mid-May registers about 12 million km2, just as it did in 2006 (although it is distributed a little differently); other data show spring extent has changed little since a major decline occurred in 1989, despite ever - rising CO2 levels.

Are these carbon - hungry «microalgae - powered» street lamps the key to saving polar bear habitat and coastal cities from annihilation?

Stern, H., & Laidre, K. (2016) Sea - ice indicators of polar bear habitat.

And as climate change accelerates, polar bear habitat will be put in ever increasing danger.

The best known consequence of disappearing sea ice in the Arctic is the loss of the polar bear habitat.

DOI: 10.5194 / tc -10-2027-2016 Sea - ice indicators of polar bear habitat

It took lawsuits and petitioning efforts by the Center for Biological Diversity, NRDC, Greenpeace, and other organizations to overcome the resistance to this listing, which would have profound implications on how polar bear habitat is used — that is, whether its arctic territory would become territory of oil companies as well.

Not exact matches

During the summer months, you can cool off at the new «Journey to Churchill Northern Species» exhibit that features expanded polar bear, Arctic fox, wolf, musk ox, caribou, snowy owl, and seal habitats.

The environmental tumult is diminishing the habitat for many species, from polar bears and seals to crustaceans and unique Arctic algae.

That corresponds to a roughly 3 1/2 week shift at either end — and seven weeks of total loss of good sea ice habitat for polar bears — over the 35 years of Arctic sea ice data.

The Interior Department lists the polar bear as a «threatened» species — one at risk of becoming endangered — due to dangerous declines in their sea ice habitat

One «growing phenomenon in the Arctic [is] polar bears foraging on land as their primary habitat, sea ice, retreats,» Kintisch writes, which makes field work even more dangerous, and difficult, than it would be otherwise.

While keeping the rule — which limits use of the Endangered Species Act to curb emissions of greenhouse gases — Salazar held open the possibility of adding habitat protections for the polar bear later.

An international «Red List» of threatened species says that the polar bear is vulnerable to extinction because of a projected decline in its habitat linked to climate change that is melting sea ice in the Arctic.

«To see the polar bear's habitat melting and an iconic species threatened is an environmental tragedy of the modern age,» Salazar said.

The rule in question was finalized by the Bush administration in December, six months after the polar bear was declared a threatened species due to the melting of its sea - ice habitat.

Interior Secretary Dirk Kempthorne, however, made clear several times during a press conference announcing the department's decision that, despite his acknowledgement that the polar bear's sea ice habitat is melting due to global warming, the ESA will not be used as a tool for trying to regulate the greenhouse gas emissions blamed for creating climate change.

The U.S. Department of the Interior Wednesday listed the polar bear as a threatened species under the Endangered Species Act (ESA) of 1973 based on evidence that the animal's sea ice habitat is shrinking and is likely to continue to do so over the next several decades.

The decision was based on evidence that sea ice is vital for polar bear survival, that this sea ice habitat has been reduced, and that this process is likely to continue; if something is not done to change this situation, the polar bear will be extinct within 45 years, Kempthorne said.

IT WILL be little consolation to hungry polar bears in northern Manitoba, Canada, who have had to wait weeks longer than usual for sea ice to form on Hudson Bay, but their habitat is not irreversibly doomed.

It seems that after the climate cooled during the last glacial period, disappearing habitat inland forced brown bears toward the coasts, where they encountered polar bears shifted there by British - Irish ice sheets.

The habitat overlap of polar bears and their main prey, ringed seals, is disappearing and the bears are instead getting closer to nesting birds

It provides habitat for polar bears and other animals that call the Arctic home.

Sea ice is a crucial part of the ecosystems at both poles, providing habitat and influencing food availability for penguins, polar bears and other native species.

With more genomes in hand, researchers are teasing out when and how polar bears came to be so successful in such a harsh 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.

Amstrup adds, «It fills a gap in our otherwise extensive knowledge of polar bear ecology and corroborates previous findings that the key to polar bear conservation is arresting the decline of their sea ice habitat.»

Warmer temperatures have allowed grizzly bears and polar bears to venture to habitats they don't usually occupy and mate to form a hybrid: the pizzly or grolar bear.

Global warming also puts stress on wildlife such as walruses and polar bears as they lose their habitat areas.

The scientists said drilling on the coastal plain would be particularly harmful because it contains a «unique compression» of habitats supporting animals like polar bears, grizzly bears, wolverines, representing «the greatest wildlife diversity of any protected area above the Arctic Circle.»

Lindqvist says that the analysis reveals that polar bear DNA has lost diversity as populations have dwindled, drifted apart and become genetically isolated, suggesting today's bears have less resilience to the environmental change, habitat loss, pollution and diseases they now face.

The population looks set to fall again as melting pack ice forces polar bears back to the land - based habitats of brown bears, where interbreeding has recently been observed.

Polar species, including the polar bear, ice - dependent seals, and emperor penguins are especially vulnerable to the effects of climate change as their unique sea ice habitats shrink due to warming.

The Arctic Ocean's sea ice and waters are habitat for many imperiled species, from polar bears to bowhead whales — and they all face the threat of dirty fossil - fuel development.

Sea ice also provides crucial coastal protection in the Arctic, hunting grounds for local tribes, and habitats for creatures from polar bears to seals.

Often photographed clinging to Arctic ice floes as its habitat melts away into warming waters, the polar bear is the poster child for U.S. efforts to save wildlife on the brink of extinction using the Endangered Species Act.

Brown bears and polar bears have adapted to very different habitats — but they remain very closely related.

However, life becomes no laughing matter for the other polar bears, reindeer and orca that exist in their icy habitat when humans start visiting with cameras, boats.

There's a great commercial right now featuring a man who goes through his daily life and keeps encountering worthy causes: a puppy from the shelter, a teenager who needs a mentor, a homeless veteran, even a polar bear whose habitat is disappearing.

It had been a dream of mine to see polar bears in their natural habitat.

Also, I'm not sure I see strong support for this concluding sentence: «Although polar bears have persisted through previous warm phases, multiple human - mediated stressors (e.g., habitat conversion, persecution, and accumulation of toxic substances in the food chain) could magnify the impact of current climate change, posing a novel and likely profound threat to polar bear survival.»

Because polar bears are entirely dependent upon the sea ice for their survival, any observed and projected reductions in preferred sea ice habitats can only result in declines.