Sentences with phrase «warmer polar summers»

Not exact matches

As a warming climate continues to accelerate the summer ice melts, it is important to understand how polar bears are — or are not — adapting to even more extreme food shortages.

The last decade has been one of the warmest on record for the polar region, with 2007 summer temperatures having risen 9 degrees Fahrenheit above average in some areas.

Warm air and surface water are melting the summer polar ice cap.

As a result of atmospheric patterns that both warmed the air and reduced cloud cover as well as increased residual heat in newly exposed ocean waters, such melting helped open the fabled Northwest Passage for the first time [see photo] this summer and presaged tough times for polar bears and other Arctic animals that rely on sea ice to survive, according to the U.S. Geological Survey.

We hope you have a better understanding of how each platform can benefit a specific type of personality so that jumping into the Social Media Sea will feel more like a warm dip on a summer day rather than a polar bear plunge.

There have been substantial, sometimes rancorous, debates among polar bear researchers about this predator's prospects in a warming climate with less summer sea ice.

With the exception of glaciers that terminate in the ocean, and glaciers in the polar regions or at extreme high altitudes where the temperature is always below freezing, essentially just two things determine whether a glacier is advancing or retreating: how much snow falls in the winter, and how warm it is during the summer.

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.

Although again I challenge you to name even five polar scientists who do not think human - caused global warming is the dominant cause of «the increasing summer retreats of sea ice.»

Even with the increasing summer retreats of sea ice, which polar scientists say probably are being driven in large part by global warming caused by humans....

I would guess summer warming would melt polar ice, leading to ice albedo feedback and global warming.

The pace of ice loss — both its extent and the amount of the older, thicker ice that survives from summer to summer — has been faster than most models predicted and clearly has, as a result, unnerved some polar researchers by revealing how much is unknown about ice behavior in a warming climate.

Three years after environmental groups sued to force the Interior Department to consider protecting polar bears under the Endangered Species Act, the Bush administration today listed the species as threatened — on track to be endangered by midcentury because of shrinking summer sea ice in a warming Arctic.

Most interesting is that the about monthly variations correlate with the lunar phases (peak on full moon) The Helsinki Background measurements 1935 The first background measurements in history; sampling data in vertical profile every 50 - 100m up to 1,5 km; 364 ppm underthe clouds and above Haldane measurements at the Scottish coast 370 ppmCO2 in winds from the sea; 355 ppm in air from the land Wattenberg measurements in the southern Atlantic ocean 1925-1927 310 sampling stations along the latitudes of the southern Atlantic oceans and parts of the northern; measuring all oceanographic data and CO2 in air over the sea; high ocean outgassing crossing the warm water currents north (> ~ 360 ppm) Buchs measurements in the northern Atlantic ocean 1932 - 1936 sampling CO2 over sea surface in northern Atlantic Ocean up to the polar circle (Greenland, Iceland, Spitsbergen, Barents Sea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly average

Climate warming is reducing the availability of their ice habitat, especially in the spring when polar bears gain most of their annual fat reserves by consuming seal pups before coming ashore for the summer.

It explains why we see polar amplification, more warming in fall, winter and early spring than Summer, etc..

Tagged Christine Graham, climate change, concerns about extinction, Daily Mail, David Rose, decline, global warming, GWPF, ice - free Arctic, IPCC, melting ice cap, observations, polar bears, polar bears thriving, predictions, sea ice loss, summer sea ice minimum

The Davis Strait polar bear subpopulation is said to be «vulnerable» to the supposed effects of global warming because, like Hudson Bay, Davis Strait sea ice retreats every summer, leaving polar bears on land for several months.

The strength of the Icelandic Low is the critical factor in determining path of the polar jet stream over the North Atlantic In the winter the IL is located at SW of Greenland (driver Subpolar Gyre), but in the summer the IL is to be found much further north (most likely driver the North Icelandic Jet, formed by complex physical interactions between warm and cold currents), which as graphs show had no major ups or downs.

The strength of the Icelandic Low is the critical factor in determining path of the polar jet stream over the North Atlantic In the winter the IL is located at SW of Greenland (Subpolar Gyre) In summer the IL is to be found much further north (most likely the North Icelandic Jet, formed by complex physical interactions between warm and cold currents) These two run under two different regimes and two clocks (see the CET synthesis from 3 harmonics, one for each summer and winter, and one common — see the above link, bottom graph).

At least a dozen polar bears that besieged a remote Russian weather station on an island in the Kara Sea during the first two weeks of September prompted a few media pundits to suggest that loss of summer sea ice due to global warming may be forcing polar bears to hunt humans for food.

The latter marks the changeover from the cold winter polar cyclone to the warm summer polar anticyclone.

Climate warming is reducing availability of their ice habitat, especially in spring when polar bears gain most of their annual fat reserves by consuming seal pups before coming ashore in summer.

LONDON, 3 April, 2018 — Two separate studies have calculated what it would take to keep the Arctic ice frozen through the summer months — and thus preserve the precious polar ecosystem and help contain further global warming.

Serreze says if these warmer - than - average conditions persist, the Arctic polar ice cap could disappear in late summer within a couple of decades.

The rhetoric and predictions of global warming acolytes have been every bit as confusing in the United States, with former vice president and carbon - credit entrepreneur Al Gore telling an audience in a 2009 speech that «the entire north polar ice cap during some of the summer months could be completely ice - free within the next five to seven years.»

Polar bears are one of the most sensitive Arctic marine mammals to climate warming because they spend most of their lives on sea ice.35 Declining sea ice in northern Alaska is associated with smaller bears, probably because of less successful hunting of seals, which are themselves ice - dependent and so are projected to decline with diminishing ice and snow cover.36, 37,38,39 Although bears can give birth to cubs on sea ice, increasing numbers of female bears now come ashore in Alaska in the summer and fall40 and den on land.41 In Hudson Bay, Canada, the most studied population in the Arctic, sea ice is now absent for three weeks longer than just a few decades ago, resulting in less body fat, reduced survival of both the youngest and oldest bears, 42 and a population now estimated to be in decline43 and projected to be in jeopardy.44 Similar polar bear population declines are projected for the Beaufort Sea region.45

Two separate studies have calculated what it would take to keep the Arctic ice frozen through the summer months — and thus preserve the precious polar ecosystem and help contain further global warming.

Most of the evidence is that species thrive in warmer weather, and polar bears have survived several inter-glaciation periods where the north pole melted entirely in the summer.

Routinely in this kind of narrative, the plight of polar bears, summer sea ice melt, global warming, and anthropogenic CO2 are conflated as the one and same thing, as each other's cause and effect, rather than treated as phenomena that have distinct and complex causes.

Susan Crockford is a polar bear expert with a message that climate alarmists don't want to hear: polar bear populations are thriving and are certainly in no danger from thinning summer sea ice supposedly caused by «man - made global warming.»

«High tilt = Cooler polar summers coupled with warmer polar winters = ice growth (assuming there are continents around to support glaciers).

The USGS simply refuses to acknowledge global warming and lost summer sea ice has NOT produced any catastrophic change for polar bears in the recent past.