Sentences with phrase «least during the past century»

Others have none, since, at least during the past century or so, they have not been bred for this characteristic.

Not exact matches

It involves policies that can be traced at least as far back as the «American System» of the early 19th Century, and it has been implemented in various forms by many different countries around the world during the past 100 or even 200 years.

During the past century, electromagnetic theory united electrostatics, magnetostatics, and network theory with optics in one stroke; special relativity combined classical mechanics with electromagnetic theory; general relativity combined the theory of gravitation with physical geometry and special relativity; and quantum mechanics united much of physics with, at least in principle, all of chemistry.

Although Ford Motor Co. casts a longer shadow over automotive history, Buick has been far from invisible during the past century and enjoys at least one distinction: It was the cornerstone of the world's largest automaker.

In AR4, the relevant statement was: Average Northern Hemisphere temperatures during the second half of the 20th century were very likely higher than during any other 50 - year period in the last 500 years and likely the highest in at least the past 1,300 years..

It is very likely that average NH temperatures during the second half of the 20th century were warmer than any other 50 - year period in the last 500 years and likely the warmest in at least the past 1300 years.

The purveyors of the new eco-religion can try to deny its existence as much as they want and the fact that there is more than enough historical evidence that it was at least as warm (more likely significantly warmer) during this period of the millenial past than it may have been during the recent warming period at the end of the 20th century.

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].»

In testimony before the US Senate in 2003, he stated: It is the consensus of the climate research community that the anomalous warmth of the late 20th century can not be explained by natural factors, but instead indicates significant anthropogenic, that is human influences... More than a dozen independent research groups have now reconstructed the average temperature of the northern hemisphere in past centuries... The proxy reconstructions, taking into account these uncertainties, indicate that the warming of the northern hemisphere during the late 20th century... is unprecedented over at least the past millennium and it now appears based on peer - reviewed research, probably the past two millennia.

Data extracted from tree rings and Antarctica ice cores indicate that solar activity has indeed fallen to unusually low levels at least three times during the past one thousand years, each drop corresponding to a long, cold spell of roughly a century in duration.