Sentences with phrase «sea ice melts in»

Recent research by Charles Greene at Cornell University and other climate scientists has shown that as more Arctic sea ice melts in the summer — because of global warming — the NAO is more likely to be negative during the autumn and winter.

Arctic sea ice melts in summer to very high latitudes, and gains melt ponds and polynaya over its full extent.

A new University of Washington study, with funding and satellite data from NASA and other agencies, finds a trend toward earlier sea ice melt in the spring and later ice growth in the fall across all 19 polar bear populations, which can negatively impact the feeding and breeding capabilities of the bears.

Due to global warming, larger and larger areas of sea ice melt in the summer and when sea ice freezes over in the winter it is thinner and more reduced.

When you have the largest Atlantic storm in recorded history that is being feed by unusually warm ocean waters (+5 °F) and is being steered in a very unusual direction by a «3 - sigma» blocking higher over Greenland after the largest Arctic sea ice melt in human history, you might want to consider the «steroid» hypothesis a bit more.

New research by scientists in the US confirms that each of the 19 known populations of Ursus maritimus is increasingly affected by the earlier sea ice melt in the Arctic spring, and the later arrival of ice every autumn.

My question still stands: why was there a large arctic sea ice melt in 2008 and 2009 and not in 1998, given that 1998, for whatever reason, was a year of high summer temperatures in the Northern Hemisphere?

The issue of southern sea ice is really just a distraction which diverts our attention from the more important issue of sea ice melt in the Arctic.

Not exact matches

Many of us who follow climate change news are aware that Greenland's ice is melting away, the Antarctic is cracking, and some Pacific islands are going underwater as seas rise — all because we are pumping more greenhouse gases into the thin layer of atmosphere in which we live.

Nearly 50 years later, problems like rising global temperatures, melting Arctic sea ice, and the demographics putting pressure on food production and resources like forests, can make you want to scream or bury your head in the sand.

He said the idea to pack the water, conceived some few years back through his interaction with the charity, was necessitated by the fact that the accumulated ice was melting away into the sea and going waste due to climate change effects while some people were in need of water.

«Such warming could cause accelerated melting of glacial ice and a consequent increase in the sea level of several feet over the next century,» she told a meeting of the UK's Royal Society.

In summer, melting sea ice releases nutrients into the water, which triggers vast algal blooms.

For example, Kangerdlugssuaq glacier has lost mass from melting and, in its thinner form, has less weight to speed the flow of its ice toward the sea.

Scientists from Rice University and Texas A&M University - Corpus Christi's Harte Research Institute for Gulf of Mexico Studies have discovered that Earth's sea level did not rise steadily but rather in sharp, punctuated bursts when the planet's glaciers melted during the period of global warming at the close of the last ice age.

In summer, when the sea ice melts, calcium carbonate dissolves, and CO2 is needed for this process.

Superstorm Sandy can't be directly, indubitably linked to the massive amount of Arctic sea ice that melted in 2012, said Greene.

Satellite data show that, between 1979 and 2013, the summer ice - free season expanded by an average of 5 to 10 weeks in 12 Arctic regions, with sea ice forming later in the fall and melting earlier in the spring.

An article in the March issue of Oceanography, authored by scientists from Cornell and Rutgers universities, points to 2012's unprecedented Arctic sea ice melt as the root cause of the events that transformed a relatively modest storm into a destructive force (ClimateWire, Sept. 20, 2012).

Melting sea ice has accelerated warming in the Arctic, which in recent decades has warmed twice as quickly as the global average, according to a new study.

That's important, she said, because cloud cover influences when in spring sea ice begins melting.

The thick sea ice in the Arctic Ocean was not expected to melt until the end of the century.

Today, sea ice is melting rapidly, and in the last decades we have seen the tree line moving north into the Arctic tundra.

Recent NASA photos showed the opening of the Northwest Passage and that a third of the Arctic's sea ice has melted in recent decades.

Dear EarthTalk: Recent NASA photos showed the opening of the Northwest Passage and that a third of the Arctic's sea ice has melted in recent.

After further analysis of the data, the scientists found that although a strong El Niño changes wind patterns in West Antarctica in a way that promotes flow of warm ocean waters towards the ice shelves to increase melting from below, it also increases snowfall particularly along the Amundsen Sea sector.

In a new paper, Hansen and colleagues warn that the current international plan to limit global warming isn't going to be nearly enough to avert disasters like runaway ice - sheet melting and consequent sea - level rise.

A recent study by Robert Kopp at Princeton University (Nature, DOI: 10.1038 / nature08686) suggests sea levels were 8 to 9 metres higher than now during the last interglacial, in part due to the west Antarctic ice sheet melting.

These big ice sheets have frozen and melted many times in the past (producing ice ages with low sea levels and warm periods with high sea levels).

«This is, of course, an important process, because the ice that melts there ends up in the ocean and raises sea level.»

A hundred kilometers wide, this ice sheet, unlike most of its peers, is actually growing instead of melting, because it has slowed its flow toward the sea in recent decades.

What they found, Hansen says, is that melting ice sheets in Greenland and Antarctica could inject enough fresh water into the seas to slow the formation of two key water masses: the North Atlantic Deepwater and the Antarctic Bottom Water formations.

In August, NASA launched ARISE, a program to measure how cloud cover may be accelerating sea ice melt around the pole.

The melting of a rather small ice volume on East Antarctica's shore could trigger a persistent ice discharge into the ocean, resulting in unstoppable sea - level rise for thousands of years to come.

The melting of sea ice is exposing more ocean waters in the Arctic, but they are showing a limited ability to dispose of CO2, according to a new study

«Today, the Pine Island and Thwaites glaciers are grounded in a very precarious position, and major retreat may already be happening, caused primarily by warm waters melting from below the ice shelves that jut out from each glacier into the sea,» said Matthew Wise of Cambridge's Scott Polar Research Institute, and the study's first author.

It also reviews recent scientific literature on «worst - case» global average sea - level projections and on the potential for rapid ice melt in Greenland and Antarctica.

If there's anything more complicated than the global forces of thermal expansion, ice sheet melt and ocean circulation that contribute to worldwide sea - level rise, it might be the forces of real estate speculation and the race - based historical housing patterns that color present - day gentrification in Miami.

This is reassuring, because if the ice cap did melt completely in the near future, it would raise global sea levels by 60 metres.

If both ice sheets melted — a process already underway at an alarming rate in West Antarctica — global sea levels would rise 200 feet.

Some researchers say that the ice sheet must have melted during the Pliocene, allowing trees to cover the mountains and diatoms to thrive in the seas.

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.

But last year, Arrigo and his team noted a proliferation of pools of water, known as melt ponds, on the surface of the Chukchi Sea ice, which were also a few meters thinner than in past years.

Melt ponds, which help light penetrate through the ice to the waters beneath, dot the Chukchi Sea landscape in July 2011.

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.

«It will help us to find clearer answers as to whether the Arctic sea ice melts primarily due to higher temperatures or whether the sea ice is shrinking due to changes in wind and ocean currents.»

After all, it is those areas that are closest to the melting point that can tip precipitously — as did Arctic Ocean sea ice in recent years.

Within a few hundred years sea levels in some places had risen by as much as 10 meters — more than if the ice sheet that still covers Greenland were to melt today.

Cantwell said that the science underway at DOE will be critical to understanding the impacts of the rising greenhouse - gas levels in the atmosphere — from Arctic sea - ice melt to ocean acidification — and maintaining US leadership in clean - energy technologies.

Fox accompanies a team of NASA scientists as they drive a refurbished orange Humvee across a frozen channel in the Canadian High Arctic, facing melting sea ice, mechanical breakdown, and the threat of marauding polar bears.