Sentences with phrase «in global sea ice extent»

Not subject to urban heat island effects, the trend in global sea ice extent is a primary indicator of climate change, or the lack thereof.

Not exact matches

We have much better — and more conclusive — evidence for climate change from more boring sources like global temperature averages, or the extent of global sea ice, or thousands of years» worth of C02 levels stored frozen in ice cores.

The extent of global sea ice coverage reached its smallest area ever recorded in 2016, new data show.

As of January 17, for instance, the global extent (area) of sea ice is at its smallest point in potentially thousands of years.

The global mean temperature rise of less than 1 degree C in the past century does not seem like much, but it is associated with a winter temperature rise of 3 to 4 degrees C over most of the Arctic in the past 20 years, unprecedented loss of ice from all the tropical glaciers, a decrease of 15 to 20 % in late summer sea ice extent, rising sealevel, and a host of other measured signs of anomalous and rapid climate change.

Global climate model projections (in CMIP3 at least) appear to underestimate sea ice extent losses with respect to observations, though this is not universally true for all models and some of them actually have ensemble spreads that are compatible with PIOMAS ice volume estimates and satellite observations of sea ice extent.

By contrast, true Ice Ages drastically reshaped the planet, with much greater changes in global temperature, sea level, and ice exteIce Ages drastically reshaped the planet, with much greater changes in global temperature, sea level, and ice exteice extent.

«The very low summer extent of Arctic sea ice that has been observed in recent years is often casually interpreted as an early - warning sign of anthropogenic global warming.

The influence of anthropogenic forcing has also been detected in various physical systems over the last 50 years, including increases in global oceanic heat content, increases in sea level, shrinking of alpine glaciers, reductions in Arctic sea ice extent, and reductions in spring snow cover (Hegerl et al., 2007).

Interesting you cut - off total ice extents at 2012, especially since the total extent of Arctic sea ice has actually increased since then, and in fact the Antarctic ice extents are at a RECORD MAXIMUM — so things aren't always what they appear to be in a very complex system known as global climate.

Currently, we are in a period of global cooling and «Arctic sea ice extent... for April 2010 was the largest for that month in the past decade.»

Keywords: Arctic sea ice, Antarctic sea ice, passive microwave imaging, global warming, climate change, polar ice caps, sea ice extent, sea ice dispersion, trends, uncertainty in trends, statistical inference

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Given the apparent importance of the MDCs in determining the seasonal and interannual variations in sea ice extent, it is very difficult to discriminate a global warming signal from the data because of the short data record.

Global mean temperatures in 2011 did not reach the record - setting levels of 2010, but were still the highest observed in a La Niña year, and Arctic sea - ice extent fell to near - record - low levels.

«Unusually cold winters, a slowing in upward global temperatures, or an increase in Arctic sea ice extent are often falsely cast as here - and - now disconfirmation of the scientific consensus on climate change.

The aim of the C - SIDE working group is to reconstruct changes in sea - ice extent in the Southern Ocean for the past 130,000 years, reconstruct how sea - ice cover responded to global cooling as the Earth entered a glacial cycle, and to better understand how sea - ice cover may have influenced nutrient cycling, ocean productivity, air - sea gas exchange, and circulation dynamics.

The global climate models used in the 2007 IPCC report also failed to acount for the extent of Arctic sea ice loss (Figure 9).

Whether it's a killer winter in South America, increased snow cover globally, record Arctic sea ice recovery, recovering glaciers in the Alps, record high sea ice extent in Antarctica, extreme cold in southeast Europe, or 5 consecutive colder than normal European winters, just to name a few, the ominous signs of global cooling are compounding rapidly.

Finally, both Antarctic and Arctic sea ice extent is combined to estimate global sea ice extent in the figure below.

There has been a long - term downward trend in summer global sea ice extent, though the trend is less clear in the winter, reflecting the fact that the Arctic shows a clearer long - term trend than the Antarctic.

Previous research has shown that global warming will cause changes in ocean temperatures, sea ice extent, salinity, and oxygen levels, among other impacts, that are likely to lead to significant shifts in the distribution range and productivity of marine species, the study notes.

Previous research has shown that global warming will cause changes in ocean temperatures, sea ice extent, salinity, and oxygen levels, among other impacts, that are likely to lead to shifts in the range and productivity of marine species.

For the AGW Warmers — a relatively short time ago — loss of sea ice extent was all the rage as an indicator of Catastrophic Global Warming... The artic was the proverbial Canary in the Global Warming Coal mine that was twittering warnings of the demise of the world.

There are no radical departures in this report from the previous assessment, published in 2007; just a great deal more evidence demonstrating the extent of global temperature rises, the melting of ice sheets and sea ice, the retreat of the glaciers, the rising and acidification of the oceans and the changes in weather patterns (3).

In combination with the low Arctic sea ice extent for November, this produced a remarkably low global sea ice total.

This was the generally accepted idea, but it's important to note that the increase in sea ice extent does not necessarily contradict global warming.

Global sea level has risen, and there have been large reductions in snow - cover extent, glaciers, and sea ice.

Global sea - ice extent has scarcely declined in that time.

If the claim that the recent Arctic melting is unusual and due to man - made global warming were true, then this would mean that the sea ice extent in September 1979 was relatively low (September being the month of minimum sea ice in the Arctic).

Then, in the beginning days of February, the Arctic sea ice extent and area both broke records again, as the entire global sea ice area entered the second - lowest range ever to have been recorded.

«Arctic Ice in «Death Spiral» with additional heating due to global warming, the extent of sea ice cover has gotten smaller and smaller over the summers since the 198Ice in «Death Spiral» with additional heating due to global warming, the extent of sea ice cover has gotten smaller and smaller over the summers since the 198ice cover has gotten smaller and smaller over the summers since the 1980s.

In fact, it's pretty clear that the end - summer sea ice extent at one Pole doesn't mean anything WRT global temperature, especially if there is an opposite trend at the other Pole.

They are assuming that a 2C rise in global temperatures will occur, sometime between 2015 and 2052, and this will affect particularly the sea ice extent, winds and the amount of open water on which these colonies depend.

Compared to the Arctic, Antarctic sea - ice extent is not as strongly influenced by recent global warming, with year - to - year climate variability still playing a large role in year - to - year changes in Antarctic sea - ice extent.

The site writes that despite all the global warming and ice - melt fantasies circulating through the circles of climate alarmism, «Arctic sea ice extent in July 2015 increased strongly compared to a year earlier.»

For example, additional evidence of a warming trend can be found in the dramatic decrease in the extent of Arctic sea ice at its summer minimum (which occurs in September), decrease in spring snow cover in the Northern Hemisphere, increases in the global average upper ocean (upper 700 m or 2300 feet) heat content (shown relative to the 1955 — 2006 average), and in sea - level rise.

Indeed the last five years include the five lowest sea ice extents since records began in 1979, and much of that trend has been caused by global warming, says NASA Cryosphere Program manager Tom Wagner in his video interpretation of the 2011 sea ice record (43 MB MPEG - 4).

Global temperature has declined despite increasing in CO2; sea ice extent has increased and understanding of the role of wind and currents in ice formation and movement have improved.

Record droughts in many areas of the world, the loss of arctic sea ice — what you see is an increasing trend that is superimposed on annual variablity (no bets on what happens next year, but the five - to - ten year average in global temperatures, sea surface temperatures, ocean heat content — those will increase — and ice sheet volumes, tropical glacier volumes, sea ice extent will decrease.

In early 2017, the Arctic, Antarctic and Global Sea Ice Area Extent were each at the lowest level in the data set that starts 197In early 2017, the Arctic, Antarctic and Global Sea Ice Area Extent were each at the lowest level in the data set that starts 197in the data set that starts 1979.