Sentences with phrase «ice each year beginning»

Not exact matches

To the surprise of everyone who knew about the strong evidence for the little ice age and the medieval climate optimum, the graph showed a nearly constant temperature from the year 1000 until about 150 years ago, when the temperature began to rise abruptly like the blade of a hockey stick.

Whereas the normal American way of breaking - the - ice is to say, «I'm John Doe and I work at Boeing» or «I'm Jane Smith and I'm an attorney,» these folks would begin rather differently: «I'm John Doe / Jane Smith and I was born again on such - and - such - a-date,» usually in the past 10 or 15 years.

The melted ice covered the earth with water, as told in Genesis, and a transformation began, possibly millions of years later.

This year, it hit along with our first snow / ice storm before winter had technically even begun.

So when she began making ice cream a few years later, in 1996, Jeni made a burnt sugar ice cream with vanilla and a heavy pinch of sea salt.

Throughout years of success and expansion, the family owned DeConna Ice Cream Inc. has remained true to its humble beginnings, the company says.

Twelve years later, a well - known butter maker from Windsor, Wis., bought into the company, which began wholesaling ice cream in 2.5 - gallon containers.

Twelve years later, upon seeing a promising business, P.B. Thomsen — a famous butter maker from Windsor, Wis. — bought into the company and began wholesaling the ice cream in 2 1/2 - gallon containers.

The last great ice age began around 120,000 years ago.

Growth rates for concentrations of carbon dioxide have been faster in the past 10 years than over any 10 - year period since continuous atmospheric monitoring began in the 1950s, with concentrations now roughly 35 percent above preindustrial levels (which can be determined from air bubbles trapped in ice cores).

The cores reveal that the ice layers became thicker and more frequent beginning in the 1990s, with recent melt levels that are unmatched since at least the year 1550 CE.

Michiel van den Broeke of Utrecht University in the Netherlands and colleagues began by modelling the difference in annual snowfall and snowmelt in Greenland between 2003 and 2008 to reveal the net ice loss for each year.

They also found this discrepancy disappeared around 19,000 years ago, which is also when the ice sheets began to melt.

The last seven years witnessed the seven lowest minimum extents since satellite observations began in 1979, and there was last a record high with Arctic ice cover two decades ago, according to federal data.

The ice - free - corridor theory began to crack in the 1990s, when researchers made a case that humans lived at Monte Verde in Chile more than 14,000 years ago.

Centre analysts have begun testing the inclusion of sea - ice data from a Japanese satellite, but that spacecraft — designed to last five years — is now five years old.

«You see a rapid increase in population size from about 18,000 years ago, just as the climate began warming up after the last Ice Age,» says lead author Rebecca Dew.

Researchers were astounded when, in the fall of 2007, they discovered that the year - round ice pack in the Arctic Ocean had lost some 20 percent of its mass in just two years, setting a new record low since satellite imagery began documenting the terrain in 1978.

Such piracy was rampant as the colossal ice sheets of the Last Glacial Maximum began shrinking around 18,000 years ago.

Researchers believe that the last ice age, which began 40 million years ago, was kicked off by the rise of the Himalayas during the collision of tectonic plates and a corresponding plunge in atmospheric carbon dioxide.

He says, however, Larsen B may have persisted as far back as 100,000 years, the beginning of the last ice age.

Until recently, most researchers thought that the ice - free corridor (see map) was the most likely route south, once the glaciers began melting 14,000 — 15,000 years ago.

Previous work had suggested that the ice shelf's downward slide began only a few years before a Rhode Island - sized region of ice

While the first of the glaciations that the team studied was probably triggered by nonvascular plants such as mosses and liverworts, the second ice age — the one that began around 445 million years ago — may have been brought on by the rise and spread of vascular plants.

Only in the past few years have scientists begun to realize that some of the dark particles on the ice sheet are in fact these ice algae and not soot, Benning says.

With the melting ice and rising seas of the End - Pleistocene, the island began to shrink rapidly until about 9,000 years ago.

Because polar bears have been spending more time off the ice in recent years, they appear to have begun to interbreed with adjacent brown bear populations, and some of these hybrids are into their second generations.

When the Ice Age ended, about 15,000 years ago, population began to climb again, setting the stage for a major turning point in human evolution.

Climate changes that began ~ 17,700 years ago included a sudden poleward shift in westerly winds encircling Antarctica with corresponding changes in sea ice extent, ocean circulation, and ventilation of the deep ocean.

While the world's human population currently grows at an average rate of 1 percent per year, earlier research has shown that long - term growth of the prehistoric human population beginning at the end of the Ice Age was just 0.04 percent annually.

Twelve thousand years ago, the great ice sheets retreated at the beginning of the latest interglacial — the Flandrian — allowing humans to return to northern latitudes.

The overall retreat of several kilometers that has occurred over the past 20,000 years was interrupted by a stillstand or a re-advance of several hundred years at the beginning of the ACR, and then by increasingly minor glacial episodes at the end of the YD, at the beginning of the Holocene (around 10,000 years ago) and during the Little Ice Age (13th to 19th centuries).

About 1.2 million years ago, the sedimentation rate accelerated — the same time that Earth's ice ages began to occur more intensely at 100,000 - year intervals rather than in 40,000 - year cycles.

Then, as they moved into coastal North America after ice sheets there began retreating around 16,000 years ago, they could have continued to dine on a wealth of coastal foods.

Once the LGM came to a close, however, the climate began to warm, the sea level rose and ice masses started melting away, allowing the Native American founder population to enter into North America nearly 15,000 years ago, according to the genetic record.

Researchers observed that roughly 5,000 years ago, thermokarst lakes in ice - rich regions of North Siberia and Alaska began cooling, instead of warming the atmosphere.

NSIDC will issue a formal announcement at the beginning of October with full analysis of the possible causes behind this year's ice conditions, particularly interesting aspects of the melt season, the set up going into the winter growth season ahead, and graphics comparing this year to the long - term record.

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.

When the ice sheets began melting about 15,000 years ago, they crossed into the New World as the first settlers.»

NSIDC scientists said there was a lot of thin ice at the beginning of the melt season, because thinner ice does not take as much energy to melt away, this may have also contributed to this year's low minimum extent.

Since they began forming 12,000 years ago in glacial hollows carved out during the last ice age, peat bogs have been squirrelling away carbon that would otherwise leak into the atmosphere.

This year, sea ice in the Arctic reached its smallest maximum extent since satellites began tracking polar ice patterns, according to the National Snow and Ice Data Center, while scientists have also forecast ice - free Arctic summers in two to three decades (ClimateWire, July 16, 201ice in the Arctic reached its smallest maximum extent since satellites began tracking polar ice patterns, according to the National Snow and Ice Data Center, while scientists have also forecast ice - free Arctic summers in two to three decades (ClimateWire, July 16, 201ice patterns, according to the National Snow and Ice Data Center, while scientists have also forecast ice - free Arctic summers in two to three decades (ClimateWire, July 16, 201Ice Data Center, while scientists have also forecast ice - free Arctic summers in two to three decades (ClimateWire, July 16, 201ice - free Arctic summers in two to three decades (ClimateWire, July 16, 2013).

Most interglacial periods have persisted for 10,000 to 15,000 years, so it seems likely that a new ice age will begin, but perhaps not for thousands of years.

Now the Greenland Ice - core Project team has found that the last interglacial period — between 115 000 and 125 000 years ago — was characterised by a series of cold periods, which began very suddenly and lasted for either decades or centuries (Nature, vol 364, p 203).

Earth's largest supply of freshwater ice outside of the Arctic and Antarctica resides in Tibet — a place that was off limits to American glaciologists until 20 years ago, when Ohio State's Byrd Polar and Climate Research Center (BPCRC) began a collaboration with China's Institute of Tibetan Plateau Research.

So I think the Neandertals are beginning certainly by about 400,000 years ago, then they gradually evolve to the final Neandertals, the ones we know best from Europe in the last ice age.

The crack stayed small for years until, in 2014, it began racing across the Antarctic ice.

The pale - coloured loach is thought to have begun to diverge from surface fish as glaciers from the last ice age receded some 16,000 to 20,000 years ago, linking surface and cave waters.

Over the next 14,000 years, the ice shelf advanced and did not begin retreating again until about 13,000 years before the present, when the last ice age ended.

Beginning approximately 37,000 years ago, the bison began to decline, perhaps because of climate and habitat changes associated with the developing ice age.