Sentences with phrase «on polar ice»

When I was in the Snow and Ice Data Center, receiving a full briefing on the polar ice caps, afterwards I would turn on my TV and there were two networks with the bulletin: «Britney Spears loses custody of her children.»

James Taylor of the Heartland Institute wrote in Forbes that the 1979 baseline on polar ice recorded a figure with that was unusually high, so when some melted we didn't really need to panic.

Amid anxieties over the effects of global warming on polar ice, some scientists have dubbed the ice break a geographical rather than a climate situation.

«Part of the reason Tom's One Man Epic is taking place now is because of the effect that global warming is having on the polar ice caps... Some scientists have even estimated that the polar ice cap will have entirely melted away by 2014.»

The rise of CO2 from 270ppm to now over 400ppm, the extent of equatorial and sub tropical deforestation, the soot deposits on the polar ice caps, the increase in atmospheric water vapour due to a corresponding increase in ocean temps and changes in ocean currents, the extreme ice albedo currently happening in the arctic etc, etc are all conspiring in tandem to alter the climate as we know it.

Ana Bray, a Guardian long thought lost, searches for a connection to her past... one that could be lost forever on the polar ice caps of Mars.

Larger sails can thrust against Earth's gravity and not even be in orbit around the Earth, and a pole sitter could sit continuously over Earth's poles and can provide continuous data on the polar ice caps.

Not exact matches

On top of all this, all electric power generation produces heat, and too much generation will raise the earth's temperature, possibly enough to cause partial melting of the polar ice caps and wreak havoc on the world's ecospherOn top of all this, all electric power generation produces heat, and too much generation will raise the earth's temperature, possibly enough to cause partial melting of the polar ice caps and wreak havoc on the world's ecospheron the world's ecosphere.

When alarmists charged that the polar bear was being hunted to extinction, the outcry sent scientists like Lee Miller and Jack Lentfer (below) off across the ice on a rewarding research trail

Many scientists think these permanently shadowed regions, such as the floors on impact craters in the Moon's polar regions, could hold large deposits or water ice.

There is abundant evidence for the past presence of water on Mars but today it appears relatively dry, with water ice confined to the planet's polar caps.

Morris uses the information she gathers on these trips to check the accuracy of data collected by a European satellite, Cryosat - 2, that tracks changes in the thickness of polar ice — information that tells scientists how quickly that ice is thawing.

False assumptions on starvation «Unless you've been living under a rock the last few decades, you're aware that Arctic Sea ice is melting, and that this is potentially bad news for polar bears,» she said, adding that until now, the prevailing belief has been that «energy from food on land is largely inconsequential.»

And researchers are not yet certain polar bears — which on ice lie in wait for, rather than chase after, prey — can do so on land.

Today the small amount of water detected on the planet is locked in the polar ice caps, but recently discovered geological features suggest liquid water once flowed on its surface.

For more than a decade these Earth - observing satellites have provided some of the first environmental measurements on a global scale, including large - scale changes in the mass of polar ice.

Overall, eight subpopulations show signs of decline, including some groups of polar bears and seals that depend on winter ice for feeding and reproduction.

As Gore shows with a litany of statistics, maps, and charts — not to mention the film's stark images of drowning polar bears, crumbling ice caps, a Katrina - lashed New Orleans, and drunken trees sliding sideways on melting permafrost — global warming is really happening.

Nineteen separate polar bear populations live throughout the Arctic, spending their winters and springs roaming on sea ice and hunting.

Dear EarthTalk: I read a heart - wrenching story of a polar bear that swam 400 miles with its cub on its back in search of an ice floe to rest on.

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.

Operation IceBridge, NASA's airborne survey of polar ice, is flying in Greenland for the second time this year, to observe the impact of the summer melt season on the ice sheet.

The results suggest that polar bears, both on ice and shore, can not slow down their metabolism enough to make it through the summer without burning through much of their stored fat.

New Maps of Mercury Show Icy Looking Craters on the Solar System's Innermost Planet A NASA spacecraft bolsters the case that ice lines the inside of polar craters on Mercury

To measure polar bears» energy expenditure during the summer months, Whiteman and his colleagues used satellite collars to track the movement of individual bears, both on shore and on ice.

At a hamlet on the southern end of Ellesmere called Grise Fiord, whose Inuit name means «the place that never thaws out,» the Inuit have watched the sea ice that supports their traditional seal, polar bear and whale hunting decrease every year.

If the melting of the polar ice caps injects great amounts of freshwater into the world's oceans, climate scientists fear that the influx could affect currents enough to drastically change the weather on land

«Billions of juvenile fish under the Arctic sea ice: New under - ice net used in large - scale study on the prevalence of polar cod at the ice underside.»

The negative impacts of warmer winters may be less evident in Nordic countries than in places like Alaska, where people and animals like polar bears and seals are more dependent on the presence of sea ice, according to Serreze.

An Oasis on Ice Cryoconite was discovered in the late 19th century, when polar explorers noticed the dark grains while trudging across the iIce Cryoconite was discovered in the late 19th century, when polar explorers noticed the dark grains while trudging across the iceice.

During their journey, the young polar cod feed on amphipod crustaceans, which in turn feed on ice algae.

«Up until our expedition, catches had only been made at specific points and observations made on individual polar cod caught beneath the ice by divers,» says David.

«When the sea ice melts, juvenile polar cod may go hungry: Biologists confirm how heavily the fish depend on ice algae.»

IMAGES of polar bears drifting on isolated chunks of ice made the species a poster child for the perils of climate change.

«When we look forward several decades, climate models predict such profound loss of Arctic sea ice that there's little doubt this will negatively affect polar bears throughout much of their range, because of their critical dependence on sea ice,» said Kristin Laidre, a researcher at the University of Washington's Polar Science Center in Seattle and co-author of a study on projections of the global polar bear population.

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.

«With most [species], we can identify a localized threat, but the threat to the polar bear comes from global influences on sea ice.»

In some parts of the Arctic, sea ice loss is causing polar bears to spend longer periods on shore each summer.

«On short time scales, we can have variable responses to the loss of sea ice among subpopulations of polar bears,» Laidre said.

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.

«For example, in some parts of the Arctic, such as the Chukchi Sea, polar bears appear healthy, fat and reproducing well — this may be because this area is very ecologically productive, so you can lose some ice before seeing negative effects on bears.

Wild card: McCain and Palin sat on opposite sides of the ice floe when it came to deciding whether the polar bear should be listed as an endangered species earlier this year.

U.S. District Court Judge Claudia Wilken in Oakland, Calif., on April 29 ordered the Bush administration to stop dragging its feet on the fate of polar bears and decide by May 15 whether declining sea ice in the Arctic threatens their existence.

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.

The researchers found that between 1985 and 1994, 62 % of polar bear dens were built on sea ice — but that number dropped to 37 % between 1998 and 2004.

Starting next week, NASA's Operation IceBridge, an airborne survey of polar ice, will be carrying science flights over sea ice in the Arctic, to help validate satellite readings and provide insight into the impact of the summer melt season on land and sea ice.

In the San Francisco Bay area, sea level rise alone could inundate an area of between 50 and 410 square kilometres by 2100, depending both on how much action is taken to limit further global warming and how fast the polar ice sheets melt.

Discussions about the consequences of the vanishing ice usually focus either on the opening up of new frontiers for shipping and mineral exploitation, or on the plight of polar bears, which rely on sea ice for...

The climate change and melting [of glaciers and polar ice] issue is obviously something that's apparently under way and can not be turned on a dime.

Because ocean currents play a major role in transporting the planet's heat and carbon, the ECCO simulations are being used to understand the ocean's influence on global climate and the melting of ice in polar regions.