Sentences with phrase «ice age cooling»

The increase in the negative forcing would have exerted a major positive feedback on the ice age cooling.

Furthermore, deforestation in the middle — high latitudes might have amplified Little Ice Age cooling by exposing more snow and increasing surface albedo (107, 110, 111).

They are used to explain the cooling after the Pinatubo eruption, or the Little Ice Age cooling as a...

18 New Papers Link High Solar Activity To Medieval And Modern Warmth, Low Solar Activity To Little Ice Age Cooling.

The quantitative contribution of CO2 to the ice age cooling and warming is fully consistent with current understanding of CO2's warming properties, as manifested in the IPCC's projections of future warming of 3 ± 1.5 C for a doubling of CO2 concentration.

It seems clear to me that that mountain glaciers and permafrost are: 1 sensitive indicators of changes in temperature; 2 uncontaminated by urban heat islands; 3 have short response times (no problem with lagged response to Little Ice Age cooling); have wide geographical coverage (especially in remote areas).

Evidence of Little Ice Age cooling in West Antarctica from borehole temperature.

The quantitative contribution of CO2 to the ice age cooling and warming is fully consistent with current understanding of CO2's warming properties, as manifested in the IPCC's projections of future warming of 3 ± 1.5 C for a doubling of CO2 concentration.

The substantial uncertainties currently present in the quantitative assessment of large - scale surface temperature changes prior to about A.D. 1600 lower our confidence in this conclusion compared to the high level of confidence we place in the Little Ice Age cooling and 20th century warming.»

Dynamical excitation of the tropical Pacific Ocean and ENSO variability by Little Ice Age cooling

It's also likely, Russell and his colleagues say, that the drying in Indonesia created a feedback loop that amplified ice age cooling.

Not exact matches

What set this in motion is uncertain, but we think it has something to do with major climatic shifts that were happening around that time — a sudden cooling in the Earth's climate driven by the onset of one of the worst parts of the last Ice Age.

Frankly, if I wanted to worry about climate change, I would worry about global cooling again, since the sun is behaving very weakly just now, and sun - watching scientists have even dared to suggest that a reprise of the Little Ice Age is in the offing.

The Earth goes through cycles and cooling (i.e Ice Age) and warming are natural cycles.

A little trick I learned ages ago for keeping cool: an ice cube in your bra.

While going for ice cream is fun at any age, up the cool factor for your tweens and teens with a visit to the gelato bar at Eataly.

Join the entire herd for the coolest show on earth; Ice Age On Ice brings laughter, adventure and the thrill of spectacular skating to fans across the country.

The data showed that, in comparison to today, the Atlantic Ocean surface circulation was much weaker during the Little Ice Age, a cool period thought to be triggered by volcanic activity that lasted from 1450 - 1850.

The team says these factors combined to cause a sudden drop in atmospheric carbon dioxide, which would have cooled the planet sufficiently to cause the ice age.

Samuel Morse, for instance, inventor of the telegraph itself and the eponymous code, was eventually compensated for his intellectual property with the still nontrivial sum of $ 80,000 — this in an age when men holding court behind ice buckets in the corner booths of Manhattan nightclubs could comfortably brag about pulling in a cool $ 2,000 a year.

But during the Little Ice Age, a period from roughly 1400 to 1850 when temperatures in Europe were cooler and many of Earth's glaciers expanded, the biggest changes came from the Intertropical Convergence Zone shifting to the south.

In fact, for temperature the major step toward the ice ages that have characterised the past two to three million years was a cooling event at 2.7 million years ago, but for ice - volume the crucial step was the development of the first intense ice age at around 2.15 million years ago.

(Global average temperature fell by about a degree during the Little Ice Age, although scientists have struggled to quantify local cooling.)

So if you think of going in [a] warming direction of 2 degrees C compared to a cooling direction of 5 degrees C, one can say that we might be changing the Earth, you know, like 40 percent of the kind of change that went on between the Ice Age; and now are going back in time and so a 2 - degree change, which is about 4 degrees F on a global average, is going to be very significant in terms of change in the distribution of vegetation, change in the kind of climate zones in certain areas, wind patterns can change, so where rainfall happens is going to shift.

They dated a subset of the bryophytes and found that the plants ranged in age from 404 to 614 years old, confirming that were frozen during the Little Ice Age, a period of cooling lasting a few hundred years, which ended in the 19th centuage from 404 to 614 years old, confirming that were frozen during the Little Ice Age, a period of cooling lasting a few hundred years, which ended in the 19th centuAge, a period of cooling lasting a few hundred years, which ended in the 19th century.

During the ice ages, storage of the greenhouse gas CO2 in the Southern Ocean contributed significantly to global cooling.

As time passed, the global climate cooled, with ice ages coming and going.

And that if it did, the northern hemisphere would cool so much that that ice sheets would start to grow, creating a catastrophic new ice age.

«Cool snake: Warmth - loving grass snake survived the Ice Age in central Europe.»

On top of that, explorations occurred during a time of global cooling known as the Little Ice Age, which stretched from the 13th to early 20th centuries.

We present a synthesis of decadally resolved proxy temperature records from poleward of 60 ° N covering the past 2000 years, which indicates that a pervasive cooling in progress 2000 years ago continued through the Middle Ages and into the Little Ice Age.

Usually, it's a minor annoyance, but as a global cooling period known as the «little ice age» took hold in the 16th and 17th centuries, the sandstorms were unusually fierce.

Long - term warming, not cooling, defined the Holocene Epoch, which began 12,000 to 11,500 years ago at the close of the Pleistocene Ice Age.

Plant samples preserved underneath these outlet glaciers on Baffin Island in the Canadian Arctic led NSF - funded researchers to conclude that the Earth's Little Ice Age began in 1275 and was triggered by repeated volcanic eruptions that cooled the atmosphere.

Earth's climate naturally varies between times of warming and periods of extreme cooling (ice ages) over thousands of years.

This caused a dramatic global cooling that initiated the ice - age cycles that have dominated Earth's climate ever since.»

Glaciers across the West have been melting ever since the end of the Little Ice Age, a cool period in the Earth's history that ended around the close of the 19th century.

But when they accounted for the greater ice - sheet coverage during the ice age (ice sheets are cooling agents), they found both epochs were roughly identical.

A mysterious, centuries - long cool spell, dubbed the Little Ice Age, appears to have been caused by a series of volcanic eruptions and sustained by sea ice, a new study indicatIce Age, appears to have been caused by a series of volcanic eruptions and sustained by sea ice, a new study indicatice, a new study indicates.

During the Little Ice Age there was a discernible warm period and during the Medieval Warm Period there was a cool period.

There were climate scientists who speculated about global cooling in the seventies and there were journalists who wrote articles about the prospect of coming ice ages.

Analysis of the data showed that despite isolated cases where ice volume and thickness increased, none of the advancing glaciers have come close to the maximums achieved during the so - called «Little Ice Age» — a period of cooling between the sixteenth and the nineteenth centuice volume and thickness increased, none of the advancing glaciers have come close to the maximums achieved during the so - called «Little Ice Age» — a period of cooling between the sixteenth and the nineteenth centuIce Age» — a period of cooling between the sixteenth and the nineteenth century.

In a bit more detail, people were aware of various forcing mechanisms — the ice age cycle; CO2 warming; aerosol cooling — but didn't know which would be dominant in the near future.

Periods of volcanism can cool the climate (as with the 1991 Pinatubo eruption), methane emissions from increased biological activity can warm the climate, and slight changes in solar output and orbital variations can all have climate effects which are much shorter in duration than the ice age cycles, ranging from less than a decade to a thousand years in duration (the Younger Dryas).

The cause of this relatively short lived cooling (it was not a true «ice age») is not fully known, but the sun could have been cooler, there may have been more volcanic eruptions, there is a small but persistent cooling trend due to orbital cycles (as explained above).

It is challenging to see how volcanism could cause an ice age, since its cooling effects would have to be stronger than, and to outlast, its warming effects.

The reflection of energy into space resulted in a global cooling, triggering the Pleistocene Ice Age.

The glaciation was favored by an interval when the Earth's orbit favored cool summers but Oxygen isotope ratio cycle marker changes were too large to be explained by Antarctic ice - sheet growth alone indicating an ice age of some size.

Be that as it may, all these studies, despite the large variety in data used, model structure and approach, have one thing in common: without the role of CO2 as a greenhouse gas, i.e. the cooling effect of the lower glacial CO2 concentration, the ice age climate can not be explained.

Short - term events within the Holocene interglacial period include the Medieval Warm Period (MWP), Roman Warm Period (RWP), Little Ice Age (LIA), and other cool events such as 4.2, 5.9, 7.2 and 8.2 kyr events.