Sentences with phrase «colder during the last ice age»

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

Not exact matches

The warm Atlantic water continued to flow into the icy Nordic seas during the coldest periods of the last Ice Age.

«It is widely thought that during cold periods of the last Ice Age the warm Atlantic water had stopped its flow into the Nordic Seas.

During the last ice age, which took place from 70,000 to 19,000 years ago, the climate in the Northern Hemisphere toggled back and forth between warm and cold states roughly every 1000 to 6000 years.

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.»

''... worked with two sediment cores they extracted from the seabed of the eastern Norwegian Sea, developing a 1000 - year proxy temperature record «based on measurements of δ18O in Neogloboquadrina pachyderma, a planktonic foraminifer that calcifies at relatively shallow depths within the Atlantic waters of the eastern Norwegian Sea during late summer,» which they compared with the temporal histories of various proxies of concomitant solar activity... This work revealed, as the seven scientists describe it, that «the lowest isotope values (highest temperatures) of the last millennium are seen ~ 1100 - 1300 A.D., during the Medieval Climate Anomaly, and again after ~ 1950 A.D.» In between these two warm intervals, of course, were the colder temperatures of the Little Ice Age, when oscillatory thermal minima occurred at the times of the Dalton, Maunder, Sporer and Wolf solar minima, such that the δ18O proxy record of near - surface water temperature was found to be «robustly and near - synchronously correlated with various proxies of solar variability spanning the last millennium,» with decade - to century - scale temperature variability of 1 to 2 °C magnitude.»

The research also shows that the swings in Pacific temperatures tend to increase in warmer times — like now — but weakened by as much as 50 percent during the protracted cold of the last ice age.

There is ample circumstantial evidence that it has a significant impact, such as the Little Ice Age that occurred during the last grand minimum, as well as the unusually cold climates that also matched past weak cycles, now, and also in the early 19th and 20th centuries.

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.

But when 1 and 2 synch up, they produce a double whammy: during the peak of the last ice age, Earth was 20 % colder!

Thus, the Norse reached Greenland during a period good for growing hay and pasturing animals... Around 1300, though, the climate in the North Atlantic began to get cooler and more variable from year to year, ushering in a cold period termed the Little Ice Age that lasted into the 1800s.

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.