Sentences with phrase «polar climate changes»

This scarcity has hampered our ability to understand, model, and predict the influence of polar climate change on the overall Earth system.

Not exact matches

Study links California drought to global warming: Now a study is asserting a link between climate change and both the intensifying California drought and the polar vortex blamed for a harsh winter that mercifully has just ended in many places...

Camille Seaman (above) captures the beauty of polar environments, and the sobering reality of climate change, in her photographs.

Dismayed by the disconnect between reality and the cartoonish animals populating his young daughter's pajamas, books and view of the natural world, journalist Mooallem sets off to explore often circuitous human - animal relationships: The once - feared polar bear has become the cherished mascot of climate change, and whales, once hunted without restraint, now attract near - fanatical rescue efforts.

New robots undergoing field tests could expand scientists» access to polar regions and improve understanding of climate change

Particularly at Annapolis and West Point, students can choose from an array of scientific disciplines such as molecular biology, environmental chemistry, ecology, polar oceanography, climate change, remote sensing, and astronomy.

Species targeted include the polar bear, already under threat due to climate change: Shrinking sea ice makes it harder for the animals to hunt seals, their main food source.

MISSOULA, Mont. — Starving polar bears, icon of the climate change movement, may be able to adapt to an ice - free summer season in the Arctic after all.

So changing the climate is far from the only way humankind could affect polar bear energy and hunting dynamics.

When most people think about wildlife in a changing climate, they think of polar bears clinging to melting ice, but even species who have adapted to tropical weather are being impacted by the changes to their environment.

The International Union for the Conservation of Nature (IUCN), which maintains the international «Red List» of threatened species, considers the polar bear «vulnerable» due to climate change - induced retreating sea ice.

The northern polar region's climate has materially changed over the past five years, a team of 121 scientists from 14 nations concludes in a December 1 Arctic report card.

The Earth's polar regions are in peril as a result of climate change, speakers cautioned at a 16 June briefing on Capitol Hill, and solving the problem requires greater support for geoscience research.

«Our changing climate poses a serious risk to stability in [the polar regions],» said Christine McEntee, AGU's executive director and chief executive officer, during her welcoming remarks at the briefing.

Or, he says, it may reflect a real shift in polar weather, driven by climate change.

The sequencing of the oldest mammalian genome from an ancient polar bear jawbone provides clues about these animals» fraught relationship with climate change

«So far, I believe the benefits (of Arctic warming) outweigh the potential problems,» said Oleg Anisimov, a Russian scientist who co-authored a chapter about the impacts of climate change in polar regions for a U.N. report on global warming this year.

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.

Leading Antarctic marine biologist James McClintock gives us an unprecedented first - person account of the dramatic impacts of climate change on the polar environment and its wildlife

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

As climate change causes the Barents Sea to grow warmer, for some years now other fish species like capelin and Atlantic cod have moved further northward, creating new competition that could reduce the polar cod population.

FIRST climate change, now penile fracture — polar bears have got it pretty rough.

Dr. Vavrus suggests that, as of yet, the effect of climate change on Arctic cyclone activity has been minimal, but that future changes in polar climate will drive stronger shifts.

But within these long periods there have been abrupt climate changes, sometimes happening in the space of just a few decades, with variations of up to 10ºC in the average temperature in the polar regions caused by changes in the Atlantic ocean circulation.

In May 2008, the Bush Administration, after multiple lawsuits, put the polar bear on the endangered species list and acknowledged that the survival of the species is jeopardized by climate change.

«We must do all we can to help the polar bear recover, recognizing that the greatest threat to the polar bear is the melting of Arctic sea ice caused by climate change,» Salazar said.

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

Above all, the new insights into the juvenile fish under the ice are important because it's still impossible to say how polar cod populations will change in the face of climate change.

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 agency listed the polar bear and wolverine last year because of climate - change related concerns.)

At odds with the low levels of factual knowledge, most respondents reported that they had a «moderate amount» or a «great deal» of understanding about climate change, where polar change has been a major area of interest.

Knowing that is key to understanding how climate change is affecting methane releases in the polar region, said Shakhova.

The ecological impacts of a changing climate are evident, from terrestrial polar regions to tropical marine environments.

«This means one of the most important questions of our time is how climate change is affecting the polar regions,» explains Dr. Marcello Passaro of the TUM German Geodetic Research Institute.

For instance, UV radiation amounts to a mere 7 % of solar energy, but its variation produces changes in the stratosphere near the Equator, all the way to the polar regions, which govern climate.

It aims to give a more complete picture of the changes taking place in polar regions because of climate change.

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.

Researchers still need icebreaking capability to study global warming's effects on polar environments — and climate change will sharpen this need well beyond scientific missions.

The list of species potentially imperiled by climate change is long, from polar bears to certain types of pine trees.

«When we think of climate change having an impact on a mammal species, what comes to mind most immediately is an Arctic animal like the polar bear, which depends on sea ice to survive,» Helgen said.

Many of the projected effects of climate change on the world's oceans are already visible, such as melting polar ice caps and rising sea levels.

«Chile is a natural laboratory and rapidly becoming a world leader in important fields for science diplomacy: astronomy, oceanography, polar research and climate change,» said Marga Gual - Soler, senior project director at the AAAS Center for Science Diplomacy, who joined Holt in Chile.

«These species are not only icons of climate change, but they are indicators of ecosystem health, and key resources for humans,» said lead author Kristin Laidre, a polar scientist with the UW Applied Physics Laboratory.

(As we discovered at a convention of climate change skeptics, polar bears are a flash point for those who oppose the regulation of carbon emissions, as well.)

As climate change causes sea ice to shrink, the number of «problem» polar bears appears to be increasing.

Our study suggests that at medium sea levels, powerful forces, such as the dramatic acceleration of polar ice cap melting, are not necessary to create abrupt climate shifts and temperature changes.»

Lead author Nicholas Pilfold, now a postdoctoral fellow at San Diego Zoo Global, said «the pattern of long - distance swimming by polar bears in the Beaufort Sea shows the fingerprint of climate change.

«Climate change is predicted to occur earliest and most dramatically at the polar regions, and that's what the observations seem to be showing,» says Karl A. Erb, director of the National Science Foundation's office of polar programs.

«The more we study the different components of the environment of the Third Pole, the better we understand climate change and its linkages among Earth's three polar regions,» Yao said.

A short skim through the text below this classic climate change image is often all it takes for glaciologist Twila Moon to find the words that set her teeth on edge: polar ice caps.