Sentences with phrase «from ice age conditions»

Not exact matches

After Levy and colleagues noted visible effects of ground ice retreat in Garwood Valley, they began to monitor the valley, combining time - lapse photography and weather - station data at 15 - minute intervals to create a detailed view of the conditions under which the ice, a relict from the last ice age, is being lost.

Soon and Baliunas are «mindful» that the Medieval Warming Period and the Little Ice Age should be defined by temperature, but «we emphasize that great bias would result if those thermal anomalies were to be dissociated» from other climatic conditions.

We had expected milder weather than Barents experienced — in the «Little Ice Age», which lasted from 1450 to 1850, mean temperatures were between 1 and 2 °C colder than nowadays — but the difference in conditions was far greater than we had anticipated.

Weather records from the time match these sandstorms with unusually windy conditions caused by the little ice age.

«This does not necessarily mean that a similar response would happen in the future with increasing CO2 levels, since the boundary conditions are different from the ice age,» added by Professor Gerrit Lohmann, leader of the Paleoclimate Dynamics group at the Alfred Wegener Institute.

The study, by an international team of scientists led by the University of Cambridge, examined how changes in ocean currents in the Atlantic Ocean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shells.

«Once the world has warmed 4 degrees C -LSB-(7.2 degrees F)-RSB- conditions will be so different from anything we can observe today (and still more different from the last ice age) that it is inherently hard to say when the warming will stop,» physicists Myles Allen and David Frame of the University of Oxford wrote in an editorial accompanying the article.

Here's a cornerstone passage from the paper, reprising a longstanding view that the environmental conditions of the Holocene — the equable span since the end of the last ice age — is ideal:

It depends on the swing of the climate: perhaps in 30,000 years from now when there's another onset of the ice age, the human populations will shrink or even vanish from the earth if the earth's climate were operating under «natural» conditions.

I read recently (in E. C. Pielou, «After the Ice Age») that toward the end of the last ice age — but long before the glaciers had receded from the continental U.S. — average global temperatures climbed to 2 - 3 degrees Centigrade above those of the modern era, a condition that obviously reversed at some poiIce Age») that toward the end of the last ice age — but long before the glaciers had receded from the continental U.S. — average global temperatures climbed to 2 - 3 degrees Centigrade above those of the modern era, a condition that obviously reversed at some poiAge») that toward the end of the last ice age — but long before the glaciers had receded from the continental U.S. — average global temperatures climbed to 2 - 3 degrees Centigrade above those of the modern era, a condition that obviously reversed at some poiice age — but long before the glaciers had receded from the continental U.S. — average global temperatures climbed to 2 - 3 degrees Centigrade above those of the modern era, a condition that obviously reversed at some poiage — but long before the glaciers had receded from the continental U.S. — average global temperatures climbed to 2 - 3 degrees Centigrade above those of the modern era, a condition that obviously reversed at some point.

[14] Although there is an extreme scarcity of data from Australia (for both the Medieval Warm Period and Little Ice Age) evidence from wave built shingle terraces for a permanently full Lake Eyre during the ninth and tenth centuries is consistent with this La Niña - like configuration, though of itself inadequate to show how lake levels varied from year to year or what climatic conditions elsewhere in Australia were like.

Some scientists have even warned that weakening solar activity could spark another «Little Ice Age,» arguing conditions mirror the centuries of global cooling the Earth went through from the late Middle Ages to the mid-19th Century.

Regarding conditions for spring 2012, Figure 4 shows maps of ice categories derived from sea - ice age for the beginning of May 2012, with maps for early May and mid-September 2011 included for comparison.

The likely cause of this remarkable CO2 growth was from the Earth's own warming, causing oceans to release ever greater amounts of CO2 - not a surprise after the lengthy freezing conditions of the Little Ice Age (LIA).

Native groups have lived in the extreme north since the last ice age by praying primarily on sea mammals and building protection from the elements by adapting to the local conditions.

In less than forty years the conditions went from the depths of the Little Ice Age to something comparable to the warmest decades of the twentieth century.

Some fascinating examples of conditions during the Little Ice Age (LIA) are reported in a wonderful book titled In Order to Live Untroubled that evolved from Renee Fossett's doctoral thesis.

It is often suggested that lower total solar irradiance (TSI) due to a decline in solar activity (less sunspots) was responsible for the Little Ice Age, a period of colder weather conditions from the end of the Middle Ages to... Continue reading →

Rigor et al. (Polar Science Center, University of Washington); 5.4 Million Square Kilometers; Heuristic This estimate is based on the prior winter Arctic Oscillation (AO) conditions, and the spatial distribution of the sea ice of different ages as estimated from a Drift - age Model (DM), which combines buoy drift and retrievals of sea ice drift from satellites (Rigor and Wallace, 2004, updated).

They had survived in good condition from the 13th century throughout the fairly cool 500 - year period called the Little Ice Age.

Regarding initial conditions for Spring 2010, Figure 2 by Maslanik and others shows maps of sea ice classes derived from sea ice age for April 2010 and 2009.

The pattern of temperatures shows a rise as the world emerged from the last deglaciation, warm conditions until the middle of the Holocene, and a cooling trend over the next 5000 years that culminated around 200 years ago in the Little Ice Age.

The Kau Bay results suggest that there was diminished ENSO amplitude or frequency, or a departure from El Niño — like conditions during the Medieval Warm Period, and distinctive, but steadily decreasing, El Niño activity during and after the Little Ice Age.»

Below are archived ice age charts from the US National Snow and Ice Data Center (NSIDC) for some previous years when Beaufort bears had trouble, especially 2004 - 2006, with which I compare this year's conditioice age charts from the US National Snow and Ice Data Center (NSIDC) for some previous years when Beaufort bears had trouble, especially 2004 - 2006, with which I compare this year's conditioIce Data Center (NSIDC) for some previous years when Beaufort bears had trouble, especially 2004 - 2006, with which I compare this year's conditions.

As the earth continues to recover from the abnormally cold conditions of the centuries - long Little Ice Age, warmer temperatures, improving soil moisture, and more abundant atmospheric carbon dioxide have helped bring about a golden age for global agricultural productiAge, warmer temperatures, improving soil moisture, and more abundant atmospheric carbon dioxide have helped bring about a golden age for global agricultural productiage for global agricultural production.

There is agreement that there were mostly warmer conditions from about 950 to 1250 AD (Medieval Climate Anomaly) and cooler conditions from about 1400 to 1850 AD (Little Ice Age).

Soon and Baliunas are «mindful» that the Medieval Warming Period and the Little Ice Age should be defined by temperature, but «we emphasize that great bias would result if those thermal anomalies were to be dissociated» from other climatic conditions.

a BP, when Salix arctica, which is considered a warmth - loving plant, had a maximum,» that (3) «comparisons with Holocene records from East and North Greenland show similar immigration histories and similar trends, with the Little Ice Age as the coldest period during the Holocene, culminating about 150 years ago,» and that (4) «subsequent warming does not indicate environmental conditions comparable to the HTM yet at this stage.»