Sentences with phrase «warming period»

For the past 2.5 million years, the earth has been in a cold period with lengthy ice ages, interrupted by brief warm periods of 10,000 years or so.

It has been suggested that more males would be born during warmer periods [12].

- The Current Warming Period is neither unusual, nor remarkable, nor unprecedented in recent human history.

However, the recent warming appears to have followed a period of global cooling from an earlier warm period which ended in the 1940s.

See the post on the Medieval Warm Period for a global perspective on this time period.

In cold periods, the methane concentration was typically between 0.3 and 0.4 parts per million, whereas in previous warm periods it was 0.6 — 0.7 ppm.

The recent warm period doesn't seem at all unusual.

That's how the last warm period ended — suddenly (ice per se returned more gradually).

Therefore there must have been a period just prior to the medieval warm period when global temperatures increased.

They knew the claim was false, many warmer periods occurred in the past.

Could such variations occur not only in glacial times, but also in warm periods like the present?

After the very warm period 1934 - 1939, which was warmer than today or in a tie with 1999 - 2005, there were suddenly the amazingly cold years of 1940 - 1942.

It is only for the urban stations that the recent warm period seems «unusually warm».

-LSB-...] Warm Period, talk about fraud or criminal charges was abusive and excessive.

The findings challenge the idea that the bears adapted very quickly, but confirm that they have made it through warming periods and loss of sea ice before.

One thing that's clear about the bears, many biologists say, is they are resilient and adaptable, having survived earlier warm periods since they evolved.

We had a high water stand around 1600 and should expect another one during the latest warming period.

There are many direct proxies like ice cores that indicate much warmer periods in the past on the 4,000 and 11,000 year scales.

It was like the need to eliminate the Medieval Warm Period because it showed the world was not warmer today than ever before.

How does the Medieval Warm Period compare to current conditions?

That this cycle coincides with the strongest warming period in the same 100 years.

There have been many warm periods, such as when the dinosaurs lived and many cold periods, such as the last ice age of about 20,000 years ago.

While the Medieval Warm Period saw unusually warm temperatures in some regions, globally the planet was cooler than current conditions.

During the Roman Warm Period ~ 2,000 years ago, sea levels were significantly higher than they are now.