Sentences with phrase «during last ice age»

The majority of cheetahs were wiped out during the last ice age; the remaining cheetah population is inbred such that all remaining cheetahs are virtually clones of each other.

Foraminifera - bound δ15N is up to 2 ‰ lower during the last ice age than during the Holocene, suggesting as much as ~ 25 % less complete nitrate consumption during the former.

«The crater area was covered by a thick ice sheet during the last ice age, much as West Antarctica is today.

Rock layers on the shore had already revealed that the lake has fluctuated in size, filling the entire Jordan Rift Valley during the last Ice Age.

Combined with carbon cycle feedbacks, it caused glaciers several kilometres thick to spread over most of North America and Eurasia during the last ice age.

During the last ice age, a mile - high North American ice sheet, that stretched as far south as Long Island, N.Y., piled so much weight on the Earth that underlying mantle rock flowed slowly outward, away from the ice.

Low levels of it came close to finishing off plants and indirectly animals during the last Ice Age.

Significant short - term (decades to century - scale) temperature and sea levels fluctuations (several degrees and many meters) during the last ice age (about 110 — 15 thousand years ago) imply great instability of the Greenland and west Antarctic ice sheets.

CO2 levels during the last Ice Age were so low that many plants were in danger of dying for lack of one of their basic nutrients, CO2.

Long considered to be the planet's ultimate safety valve for excess carbon dioxide - drawing down close to 25 % of all anthropogenic emissions - the oceans may not prove as effective at storing the greenhouse gas as they did during the last ice age,

And, another way to look at temperature changes is this: During the last ice age, when there was like a mile of ice on top of where I currently am, the global temperature was only about 5 - 7 C colder than it is today.

During the last ice age, a massive North American ice sheet placed so much weight on the surface of the planet that the mantle rock began to flow slowly out and away from underneath the ice, causing a bulge under the Chesapeake Bay region.

If rising temperature was responsible for unexplained ones, can we assume that there weren't any weather patterns during the last ice age?

during the last ice age as evidence that 3.7 w / m2 for CO2 x 2 will produce 3C of warming.

The ISM exhibited rapid changes in variability during the last ice age (64) and the Holocene (65), with an increased strength during recent centuries consistent with Northern Hemisphere warming (66).

More than once did very early man face extinction, «especially during the last ice age,» says the documentary.

But new research has shown evidence of a 200 - year lag between climate events in Greenland and Antarctica during the last ice age, and it could possibly help shed light on the consequences of climate change in the future.

Glaciers during the last ice age were so thick and heavy that their weight caused the land immediately beneath them to sink, while the land at the edges of the glaciers rose.

Isostatic rebound is an important factor affecting sea level rise, or what appears to be sea level rise, in those areas where there were glaciers during the last ice age that ended around 12,000 years ago.

Sea level has risen as the vast continental glaciers formed during the last ice age melted.

Wenk Physics Institute, University of Bern, CH — 3012 Bern, Sidlerstrasse 5, Switzerland Studies on air trapped in old polar ice1, 2 have shown that during the last ice age, the atmospheric carbon dioxide concentration was probably significantly lower than during the Holocene — about 200 p.p.m. rather than 270 p.p.m.. Also, Stauffer et al. 3 recently showed by detailed analyses of Greenland ice cores, that during the ice age, between about 30,000 and 40,000 yr BP, the atmospheric CO2 level probably varied between 200 and 260 p.p.m..

Secondly, we have lots of palaeoclimatic evidence for abrupt changes in the AMOC, which are leading candidates to explain Dansgaard - Oeschger transitions during the last ice age, and the cold snap 8,200 years ago.

The mechanisms that lowered surface pH to 8.3 - 8.4 during the Last Ice Age is a matter of considerable debate, but clearly more carbon was being sequestered at depth and less carbon was being pumped to the surface.

The last time the Earth's temperature deviated that much from the average of recent millennia was during the last ice age.

The ubiquitous character of certain events further confirms their importance: «the Younger Dryas and a large number of abrupt changes during the last ice age called Dansgaard / Oeschger events (23 abrupt changes into a climate of near - modern warmth and out again, during the last glacial period) have been corroborated in multiple ice cores from Greenland, Antarctica and tropical mountains, marine sediments from the North Atlantic Ocean, the tropical Atlantic, eastern Pacific, and Indian Oceans, and from various records on land.

In recent years researchers have been lowering their estimates of mass gained during the last Ice Age and lost ice mass during the recent deglaciation.

Warm ocean water existed south of Greenland, wedged between two major ice sheets during the last ice age.

Kenneth, you may find this study titled «Glaciers in Mongolia's Gobi Desert actually shrank during the last ice age» of interest.

Saha, 2015 http://onlinelibrary.wiley.com/doi/10.1002/2015PA002809/full «During the last ice age there were several quasiperiodic abrupt warming events.

Massive ice sheets covered parts of North America, northern Europe, and several other regions during the last ice age.

It is now clear that just the opposite is the case since global CO2 was dangerously low during the last ice age.

The dragons can not drink that much -LRB-» during the last ice age; Mediterranean, Ionian, Adriatic, Aegean, Black sea, Caspian WHERE ALL DRY!

Climate change was dramatic even during the last ice age, says Professor Tine Rasmussen.

During the last ice age, seals also experienced far more rapid changes than they are experiencing now or that are predicted in the future.

The studies show that the ice sheet shrank and grew again to a much greater extent than assumed during the last ice age.

Most importantly, Africa was much drier (Lake Victoria, one of Africa's largest lakes, dried up during the last ice age).

I find it interesting to note that during the last ice age, Eastern White Pine grew on the Grand Banks off the coast of New England.

The NE Pacific was cold during the last ice age, perhaps hampering growth.

During the last ice age much of the northern hemisphere was covered in ice and glaciers, and, as this map from the University of Arizona shows, they covered nearly all of Canada, much of northern Asia and Europe, and extended well into the United States.»]

During the last ice age, ice sheets also covered much of North America and Scandinavia.

Humans lived in a rather different world during the last ice age, which peaked 20,000 years ago.

As during the last ice age when sea levels were around 100 m lower icebergs were grounding at 44s, these would have calved from similar size as during the 2001 event (160kmx30km) hardly evidence of change.

Via various isotope analyses and flow models, Jasechko (2017) estimated that between 42 - 85 % of all groundwater stored in the upper 1 kilometer of the earth's crust is water that had infiltrated the ground more than 11,000 years ago, during last Ice Age.

The great weight of the continental glaciers during our last ice age, applied such great pressure that it forced meltwater to into the ground at much greater rates than currently observed recharge.

During the last ice age, over 20 abrupt and dramatic climate shifts occurred that are particularly prominent in records around the northern Atlantic (see Section 6.4).

During the last ice age, ice was miles thick in extensive areas.

But the world was only about 4 °C to 7 °C cooler, on average, during the last ice age, when large parts of Europe and the United States were covered by glaciers.

Walter Starck noted that if only humans really were able to heat the globe, «and it helps to prevent another ice age, this would be the most fortunate thing that has happened to our species since we barely escaped extinction from an especially cold period during the last ice age some 75,000 years ago.»

How a seal ended up in this giant icy wonderland is anyone's guess; one theory is that members of the species may have traveled up ice - choked rivers from the Arctic Ocean during the last ice age, notes the California Academy of Sciences magazine, bioGrahpic.

The expansion of sea ice during the last ice age acted as a «lid» on the Southern Ocean, preventing CO2 from escaping.