Sentences with phrase «recent ice age»

About 120,000 years ago, in the warm period that preceded our most recent ice age, modern type Homo sapiens was probably walking around Africa with dark skin — and sporting a brain that was three times larger than before the first ice age chatters 2.5 million years ago.

Rates peaked more than 10 times faster in Meltwater Pulse 1A during the warming from the most recent ice age, a time with more ice on the planet to contribute to the sealevel rise, but slower forcing than the human - caused rise in CO2 (Figure 2.5 and 2.6).

The difference between our current average global temperature and the most recent Ice Age is only 5 degrees Celsius.

Nevertheless, the risk of a catastrophic melting and break - up of the Greenland or West Antarctic ice sheets is very real, when we consider that sea level before the most recent ice age was 15 feet higher than it is now.

Early studies by geologists and glaciologists attempted to find a climate mechanism to explain the evidence of massive ice sheets during the recent Ice Age.

I have a theory that in the recent ice age history aquifers have never been dry.

Scientists like Bernard Kuhn and James Hutton, had noticed evidence of a recent ice age in the Alps in their travels at the end of the 18th century.

The most recent ice age ended, uh,... not yet.

We are leaving the most recent ice age, naturally, it's getting warmer.

In Annan et al, much of their analysis was dealing with fast feedbacks, but some mention of comparisons between the most recent ice age and today were mentioned which would suggest that long - term feedbacks were being included.

Every so often a fortunate attitude and orbit of the Earth combine to drench the ice sheets in sunshine as at the end of the most recent ice age, about ten thousand years ago.

Temperature also rose after recent ice age.

According to the standard story, the recent ice age cycles only set in in the Pleistocene because you need ice to amplify the rather small Milankovic forcing and to rectify the seasonal forcing modulations into a long - term signal.

Kahlke has summarized the mammoth's distribution during the most recent Ice Age, i.e., the period between approx. 110,000 and 12,000 years ago, on a worldwide map.

The most recent ice age peaked 21,500 years ago, but continued until about 13,000 years ago.

About 120,000 years ago, in the warm period that preceded our most recent ice age, modern type Homo sapiens was probably walking around Africa with dark skin — and sporting a brain that was three times larger than before the first ice age chatters 2.5 million years ago.

A new study has found geochemical clues near the summit of volcanic Mauna Kea that tell a story of ancient glacier formation, the influence of the most recent ice age, more frequent major storms in Hawaii, and the impact of a distant climatic event that changed much of the world.

Some of the shallow - water seeps are likely to be in now - submerged areas that were methane - producing wetlands during the most recent ice age, when sea levels were more than 100 metres lower than they are today.

After that heyday, the bears must have been split up into small, isolated populations — genetic bottlenecks — perhaps as they sought refuge on islands and other areas not covered by advancing glaciers during the most recent ice age.

As wind and rain erode the mountain range, massive rivers carry more than a billion tons of sediment into the Bay of Bengal each year; in some places, the layer deposited since the most recent ice age is more than one kilometer thick.

«So we knew that in the final period of the recent Ice Age, between 30,000 and 15,000 years ago, large amounts of sediment were deposited in the region in a relatively short period of time,» explains Dr. Karstens.

For comparison, the global temperature of the most recent Ice Age was only about five degrees C below the current average.

They think one bone might be from another camel, but it's not yet clear whether it dates to the Pliocene or the more recent ice age.

A prehistoric human skeleton found on the Yucatán Peninsula is at least 13,000 years old and most likely dates from a glacial period at the end of the most recent ice age, the late Pleistocene.

The findings suggest that humans were present on the west coast of British Columbia about 13,000 years ago, as it emerged from the most recent ice age.

Like many parts of the world during the most recent ice ages (the last of which ended about 12,000 years ago), Australia had its share of weird giant animals, including a supersized relative of the Komodo dragon, today's largest land lizard.

During the warm periods between recent ice ages, temperatures in Antarctica reached substantially higher levels than scientists had previously thought.

Applications of foraminiferal δ11B to the geological record are highlighted, including studies that trace CO2 storage and release during recent ice ages, and reconstructions of pCO2 over the Cenozoic.

Temperature records of recent ice ages show a long slow descent, starting around 10 - 12,000 years after the beginning of the interglacial.

The evidence from recent ice ages suggests that periods with high CO2 concentrations correlate with periods of cooling (but could easily be coincidental).

Indeed it dropped to dangerously low levels during recent ice ages.

Lot of evolution gone on before and during those; before our recent ice ages things were even messier.

While current empirical and theoretical ecological results suggest that many species could be at risk from global warming, during the recent ice ages surprisingly few species became extinct.

In recent ice ages, natural changes in the climate (due to orbit changes for example) led to cooling of the climate system.

Not exact matches

Recent research has found evidence that comparable floods occurred much earlier in the Ice Age in the Columbia Basin, as much as 1 to 2 million years ago.

A West Brom die - hard fan, Jamie Bourn, is going even further by praying that the recent snow is a sign that the next Ice Age is upon us and then the Premier League season will be to be cancelled.

A number of theories have been developed over the years to explain more recent extinctions such as those at the end of the last ice age, including human hunting, climate change, disease, and even a cosmic impact such as an asteroid or comet.

The most plausible explanation of how humans first settled the Americas — Ice Age hunters pursuing game walked from Siberia to Alaska over a land bridge — has gained wide acceptance in recent years, although scientific evidence has been thin at best.

The experiment simulated conditions believed to be the cause of the beveling — the most recent episode of which occurred during the period of deglaciation following the last Ice Age, about 18,000 years ago.

Recent ecological, genetic and archaeological data support the notion of human habitation in Beringia during the latest ice age.

When the ice age ended, these ancient species and other, more recent ones were ready to take advantage of habitats that opened up in the mountains» higher elevations — and the plants and trees speciated like mad.

On the subject, Robert Ehrlich has a recent paper on solar forcing of ice ages.

In a recent article in Climatic Change, D.G. Martinson and W.C. Pitman III discuss a new hypothesis explaining how the climate could change abruptly between ice ages and inter-glacial (warm) periods.

The result gives a qualitatively good match to the most recent four ice age cycles, according to the 1990s data that they used.

The European Alps have been growing since the end of the last little Ice Age in 1850 when glaciers began shrinking as temperatures warmed, but the rate of uplift has accelerated in recent decades because global warming has sped up the rate of glacier melt, the researchers say.

[7] It has been suggested that the end of this ice age was responsible for the subsequent Ediacaran and Cambrian Explosion, though this theory is recent and controversial.

«The recent research findings show that during the last Ice Age, mammoths were the most widely distributed large mammals, thus rightfully serving as a flagship species of the glacial era,» according to Prof. Dr. Ralf - Dietrich Kahlke, an Ice Age researcher at the Senckenberg Research Station for Quaternary Paleontology in Weimar.

More recent studies, with much more precise correlation between ice cores and global temperature records, have shown that temperature and CO2 changed synchronously in Antarctica during the end of the last ice age, and globally CO2 rose slightly before global temperatures.

Call of Juarez: Bound in Blood gets the crew in the mood as they discuss that recent release as well as Ice Age: Dawn of the Dinosaurs, Overlord Minions, and more in Gamespeak.

A cute movie with some laughs that the kids will like, Ice Age 3: Dawn of the Dinosaurs lacks in originality compared to its recent animated peers.