Sentences with phrase «polar ice means»

While climate change is certainly a terrifying prospect, it is still somewhat difficult for many people to grasp exactly what the melting of polar ice means for them.

Not exact matches

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.

«That means the rapid retreat of Arctic sea ice poses an especially serious threat for polar cod.

Respiration by bacteria may have slightly increased levels of CO2 in pockets of air trapped within polar ice caps meaning that before human activity CO2 levels may have been even lower than previously thought.»

The polar vortex that swirls around the South Pole is not just stronger than it was when satellite records began in the 1970s, it has more convergence, meaning it shoves the sea ice together to cause ridging.

Sea ice is drifting faster in the Arctic — which means polar bears need to walk farther to stay in their native range.

Re # 104: That's a nice try by Walt, meaning that his information is, um, sea ice off a polar bear's back as far as the regular commenters there are concerned.

That line is 0, meaning zero ice, essentially nothing but liquid water at the Earth's north polar regions; that means this graph gives you an absolute scale.

The speed of the warming climate and the resulting reduction in sea ice means â $ œthe prognosis for polar bears is uncertainâ $?

Does this also mean that there has been no additional melting of ice at the polar regions and the major glaciers?

To me, it would mean that the spin rate of the earth is actually increasing and temporarily reversing its long term trend of slowing, while we are in the polar ice build - up phase of this climate cycle.

The ice shrinkage has meant that polar bears, which are strong swimmers, have had to cover longer distances between ice and land.

Globally, the ice is spitting - distance close to the 1981 - 2010 average calculated by the NSIDC for this date — which means lots of winter / spring hunting habitat for polar bears.»

This means that it does not matter to polar bears how much area the Arctic Basin ice covers in September — for their needs, 1.0 mkm2 would be plenty.

According to several reports I saw at the Scott polar institute this late melt meant that in some years an essentially ice bound August arctic became a pretty navigable arctic in September.

Keep this in mind when you hear or read stories about polar bears and predicted sea ice declines: «sea ice» does not mean spring sea ice.

If polar bears have been around for, say, half a million years this means that they've survived several ice ages, including all the sudden warming periods at the beginning of each interglacial, many of which will have been warmer than now.

The polar vortex that swirls around the South Pole is not just stronger than it was when satellite records began in the 1970s, it has more convergence, meaning it shoves the sea ice together to cause ridging.

Taylor also debunked the notion that less sea ice means less polar bears by pointing out that southern regions of the bears» home with low levels of ice are seeing booming bear populations.

Melting polar ice, rising sea levels, floods, droughts and hurricanes are all in there — even though these are largely contradicted not just by the actual evidence, but even by the much more cautious contents of the vast technical reports they were meant to be «synthesising».

Essentially, this means that by adding the polar and subpolar experiments, we do not get the same response as the net sea ice experiment in the stratosphere.

Shallow snow cover over birthing lairs, which are built against pressure ridges as shown in the diagram above (considered to be less than 25 - 32 cm over the lair, or less than 20 cm over flat ice), 1 can mean the snow caves are easier for polar bears to break into (and consume the pup)-- that's good news for polar bears (in the short term) but bad news for ringed seals.

The changes in the sea ice environment, and their consequent effects on polar bears, are demonstrable in parallel fluctuations in the mean ages of polar bears killed each year by Inuit hunters.

Partly because they give birth on mobile pack ice, harps have their pups earlier in the season than all other Arctic seals, which means that in some regions, they are a critical food source for polar bears that have eaten little over the winter months.

If we have, indeed, only had polar ice for 20 % of the last 6 - million years (from Ian Plimer), then regression - to - the - mean dictates betting on «up» would likely yield better odds at times when we have ice caps to ponder.

This would mean that the polar ice would probably reduce, but the polar vortex would probably expand southwards ensuring more Northern land mass get buried in snow.

The ice coverage has been documented since 1973 by means of passive microwave sensors on polar orbiting satellite.

Furthermore, due to the apparent melting of ice in which they normally hunt seals, polar bears are now being forced inland, meaning they could turn to human meals instead.

«Our approach to sail across a historical stretch of water that has traditionally been frozen is meant to be a clear visual example of the extent of declining polar ice.»

Alternative means of depicting the polar data sets is now quite good, but an integrated assessment to analyze the global sea ice data is still missing.

That is because the extent of sea ice in early summer and late fall means little to polar bears, in part because most bears eat very little then, even if they are on the ice.

The North Pole has a lot of meaning to Canadians beyond being simply a chunk of ice that serves as a park bench to migrant seals and polar bears.