Sentences with phrase «decades during the last ice age»

Not exact matches

During the last big abrupt cooling, 12,900 years ago, Europe cooled down to Siberian temperatures within a decade (about ten-fold greater than in the Little Ice Age), the rainfall likely dropped by half, and fierce winter storms whipped a lot of dust into the atmosphere.

''... 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 MDB average rainfall during the last three decades has been recording a 10 % loss per decade, I believe this is primarily due to declining solar radiation levels, moving from the highest for 8000 years to presently the lowest for 100 years, this solar decline is expected to continue for at least another 3 decades, maybe 6 decades like it did in the 16th century, brining on the last little ice age.

Responding to and in the manner of KK Tung's UPDATE (and, you can quote me): globally speaking the slowing of the rapidity of the warming, were it absent an enhanced hiatus compared to prior hiatuses, must at the least be interpreted as nothing more than a slowdown of the positive trend of uninterrupted global warming coming out of the Little Ice Age that has been «juiced» by AGW as evidenced by rapid warming during the last three decades of the 20th Century, irrespective of the fact that, «the modern Grand maximum (which occurred during solar cycles 19 — 23, i.e., 1950 - 2009),» according to Ilya Usoskin, «was a rare or even unique event, in both magnitude and duration, in the past three millennia [that's, 3,000 years].»

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.