Sentences with phrase «rise during interglacial»

Ice - rafted debris occurs in greater abundances on the continental slope and rise during interglacial periods during the Late Pleistocene, with more varied stone lithologies [32 - 34].

«The hypothesis that the CO2 rise during the interglacials caused the temperature to rise requires an increase of about 6 °C per 30 % rise in CO2 as seen in the ice core record.

Not exact matches

During the last Interglacial period the sea rose sixty - five feet above current levels.

Until now it had been assumed that thermophilic reptiles survived the Ice Ages only on the southern peninsulas of Europe and spread northward once the temperatures rose again during the Holocene and the interglacial periods.

The fact that ice sheets will respond to warming is not in doubt (note the 4 - 6 m sea level rise during the last interglacial), but the speed at which that might happen is highly uncertain, though the other story this week shows it is ongoing.

In a study out of the University of Arizona, researchers found that melting ice sheets had a greater impact on sea level rise than the thermal expansion of the oceans during the previous interglacial period 125,000 years ago.

The latter events left behind distinctive rock - sequences typically consisting of tillites (ancient boulder - clay, now solid rock) representing ice - deposited debris, overlain with a depositional break by cap - carbonates (chemical sediments of marine origin deposited during interglacials following global sea - level rises).

For example, Hansen & Sato argued that since GAT during the Eemian (last interglacial before the present) was only slightly higher (less than 1 degree C) and sea levels 4 - 6 meters higher, a 2 degree rise in GAT in the near future will result flooding very quickly.

There is lots of evidence out there which suggests that rapid mluti - meter SLR does occur: High rates of sea - level rise during the last interglacial period http://www.nature.com/ngeo/journal/v1/n1/full/ngeo.2007.28.html

It would require a much stronger relationship of temperature driving CO2 than occurred during the ice age — interglacial oscillations (and it is also important to remember that those changes occurred over much longer timescales too... which is the presumed reason why there is a several hundred year lag time between temperatures starting to rise or fall and CO2 starting to rise or fall).

On the global mean sea level rise during the last interglacial period (129,000 to 116,000 years ago), the UK, Austria, US, Germany and others supported providing a policy relevant context and linking paleoclimatic observations on sea level rise to temperature.

Quantitatively, Vasskog et al. estimate that during this time (the prior interglacial) the GrIS was «probably between ~ 7 and 60 % smaller than at present,» and that that melting contributed to a rise in global sea level of «between 0.5 and 4.2 m.» Thus, in comparing the present interglacial to the past interglacial, atmospheric CO2 concentrations are currently 30 % higher, global temperatures are 1.5 - 2 °C cooler, GrIS volume is from 7 - 67 % larger, and global sea level is at least 0.5 - 4.2 m lower, none of which observations signal catastrophe for the present.

But during these interglacials the CO2 level was about 300 ppm, so I think the CO2 level had very little to do with the sea level rise.

Scientists are confident CO2 was lower during the ice ages and that its rise was coupled to rising temperatures when Earth moved to an interglacial.

In sum, the conclusion of the Kopp study that 20th century sea level rise was extremely likely faster than during any of the 27 previous centuries is not substantiated, although there is little doubt that sea levels are higher than they have been since the last interglacial period, the Eemian, about 115,000 to 130,000 years ago.

The authors find «a relatively low contribution to Last Interglacial sea level rise from Greenland melting... The resistance of Greenland to thaw despite much higher temperatures [8 C] during the last interglacial led warmist blogger Andy Rivkin of the NY Times to remark,»... Greenland doesn't need «sInterglacial sea level rise from Greenland melting... The resistance of Greenland to thaw despite much higher temperatures [8 C] during the last interglacial led warmist blogger Andy Rivkin of the NY Times to remark,»... Greenland doesn't need «sinterglacial led warmist blogger Andy Rivkin of the NY Times to remark,»... Greenland doesn't need «saving»

Even if it has been warmer at times during the current and previous interglacials, showing that the forcing is unprecedented, rising and currently overwhelming natural variation can be seen of itself to be sufficient cause for alarm (that it be overwhelming is not quite what the IPCC report states but the more than half post 1950 claim is similar).

222 Kurt M. Cuffey and Shawn J. Marshall, «Substantial contribution to sea - level rise during the last interglacial from the Greenland ice sheet,» Nature 404:591 - 594 (2000).

During the last interglacial about 128,000 years ago, a range of hills in western Normandy was isolated by rising sea level, becoming the island of Jersey.

This further complicates any attribution of trends in surface pH. For example upwelling of stored CO2 is believed to have been the main driver of the rise in atmospheric CO2 and the fall in ocean surface pH during the transition from the glacial maximum to our interglacial.

In terms of global phenomena, it seems rather than regions which have always cooled and warmed during global warming or cooling trends, the metric of rising sea levels [which have been occurring throughout our current interglacial period [10,000 years] should be metric used.

Predictions of future sea - level rise and reduction in volume of ice sheets are consistent with what the evidence indicates during the Last Interglacial.

The observation that led to his conclusion was that in the ice core records during interglacials methane rises to a peak and then decreases as temperature rises and falls.

During this interglacial, methane rose, peaked, started to decrease and then stopped decreasing and began increasing again starting about 5,000 years ago.

Misconception # 3 — During the interglacial periods changes in CO2 lag behind temperature rises, so are not the cause for warming

The fact that ice sheets will respond to warming is not in doubt (note the 4 - 6 m sea level rise during the last interglacial), but the speed at which that might happen is highly uncertain, though the other story this week shows it is ongoing.

The latter events left behind distinctive rock - sequences typically consisting of tillites (ancient boulder - clay, now solid rock) representing ice - deposited debris, overlain with a depositional break by cap - carbonates, chemical sediments of marine origin deposited during interglacials following global sea - level rises.