Sentences with phrase «last few tens of thousands of years»

I did not say homeostasis was the cause of the very small changes in atmospheric temperature over the last few tens of thousands of years, as Izen seems to assume.

«It is fascinating to see direct evidence that these archaic species did exist (alongside us) and it's only for the last few tens of thousands of years that is unique in our history that we are alone on this planet and we have no close relatives with us anymore,» he said.

Black is the original or «normal» skin color for humans — lighter skin colors evolved in the last few tens of thousands of years as populations adapted to higher latitudes.

Not exact matches

While the atomization of the traditional TV platform didn't do ABC any favors last night — in a move that sent tens of thousands of cord - cutters scrambling for a link to a pirate feed, the network's live stream of the Oscars was available only to verified pay - TV subscribers — the enthusiasm for this year's show may have been dampened by a pool of nominees that was loaded with smallish releases and fewer household names than in years past.

«There are very few examples in the galaxy of this process in action because this phase is short - lived, perhaps lasting only a hundred thousand years, while the timescale over which a resulting disk is visible could be only ten thousand years or less.»

The stars may be passing through a stage of stellar evolution that lasts no more than a few tens of thousands of years, the scientists say — a phase between red giants (about 30 or 40 times the size of our sun) and blue subdwarfs (stars about one - fifth the size of our sun but seven times hotter and 70 times brighter).

Not only are groups of friends organizing their own campaigns but Twitch has been livestreaming D&D adventures over the last few years and tens of thousands of people are watching at a time.

We put in another year and tens of thousands more miles of travel to test the best travel gear — and we stand by last year's choices alongside a few new picks.

The following graph is a simple comparison using the last four interglacial periods as an indication for the next few tens of thousands of years.

It has been warmer than the present for much of the ten thousand years since the last big ice age: it was a little warmer for a few centuries in the medieval warm period around 1100 (when Greenland was settled for grazing) and also during the Roman - Climate Optimum at the time of the Roman Empire (when grapes grew in Scotland), and at least 1 °C warmer for much of the Holocene Climate Optimum (four to eight thousand years ago).

The stability of the last ten thousand years of theHolocene climate is NOT the result of some mystical inherent quality of «homeostasis», it is the inevitable outcome of very few, and small forcing factors on the climate.