Sentences with phrase «during periods of warming»

Scientists monitoring the Cayman reefs noted a 40 percent decline in live coral cover between 1999 and 2004 during a period of warmer seas in the Caribbean.
Barley can also be stored in the refrigerator during periods of warmer weather.
Whether the oceans net absorb or release CO2 during a period of warming depends not just on the warming but also on changes in the partial pressure of CO2 in the atmosphere above the oceans.
Furthermore, the recent retreat was matched in its vigour during a period of warming in the 1930s with comparable increases in air temperature.

Not exact matches

During the first third of the year, from January through April, the average temperature for the contiguous United States was 4 degrees Fahrenheit above the 20th - century average, making this period the second warmest on record, according to the National Oceanic and Atmospheric Administration.
Great flood: the filly of a large basin by raising oceans during the warming period after the last ice age.
During the period from about three to six years, children normally establish an especially warm, close relationship with the parent of the other sex.
Now that the weather is getting warmer so big bowls of warm oats aren't as appealing to me as they are during the colder periods, but I still want the benefits of eating a good bowl of oats.
Other baby car seats are designed with materials that tend to heat up making your baby feel warm and sweaty especially during longer periods of time.
At the beginning of a strenuous exercise program or after traveling to a warmer climate, the intensity and duration of exercise should be limited initially and then gradually increased during a period of 10 to 14 days to accomplish acclimatization to the heat.
If possible, choose a week during the summer or a period of warm weather, so that little bare bottom doesn't freeze.
Notably, the rise and expansion of both the Indus Valley civilization (from about 5350 years to about 4600 years ago) and the Vedic civilization (from about 3450 years to about 3100 years ago) occurred during periods when climate was relatively warm, wet, and stable.
Researchers from the Niels Bohr Institute have analysed the natural climate variations over the last 12,000 years, during which we have had a warm interglacial period and they have looked back 5 million years to see the major features of the Earth's climate.
Scientists may also become able to distinguish between different scenarios sooner by studying the physics of local ice - sheet changes and refining reconstructions of changes during warm periods in geological history.
New research could explain why the Arctic was much warmer during a period millions of years ago that scientists say most closely resembles Earth's climate today
Scientists from Rice University and Texas A&M University - Corpus Christi's Harte Research Institute for Gulf of Mexico Studies have discovered that Earth's sea level did not rise steadily but rather in sharp, punctuated bursts when the planet's glaciers melted during the period of global warming at the close of the last ice age.
A Swiss - led group using tree - ring data to look at Central European summer climate patterns during roughly 2,500 years saw that periods of prolonged warming and of colder than usual spells coincided with social upheavals.
Instead, the fossil record indicates they vanished during the Earth's glacial - interglacial transition, which occurred about 12,000 years ago and led to much warmer conditions and the start of the current Holocene period.
Heavier rainfall at the study sites from the year 0 to 400, and again during Europe's Medieval Warm Period, just before the Little Ice Age from about the year 800 to 1300, was probably caused by a centuries - long strengthening of El Niño.
If the onset of maturity comes earlier in the season, it means that grapes ripen during a warmer period — affecting sugar levels, aromas and flavors and changing the unique identity that connoisseurs look for in regional wines.
«Using a numerical climate model we found that sulfate reductions over Europe between 1980 and 2005 could explain a significant fraction of the amplified warming in the Arctic region during that period due to changes in long - range transport, atmospheric winds and ocean currents.
In the Ozarks, glades often help to preserve isolated communities of cacti and other desert and prairie species that dominated the area during the Hypsithermal, a period of warming that occurred four to eight thousand years ago.
Many of the glaciers that jut out into the ocean are thinning, but whether the ice sheet itself has remained stable and intact, even during warm interglacial periods, is a matter of considerable debate.
Until recently, that was also true of the ice sheet's past: Scientists have long debated whether it might have shrunk away to nothing during Earth's warmest periods.
The warming at Mt. Hunter is about double the amount of warming that has occurred during the summer at areas at sea level in Alaska over the same time period, according to the new research.
«During last warming period, Antarctica heated up two to three times more than planet average: Amplification of warming at poles consistent with today's climate change models.»
The more intensive variations during glacial periods are due to the greater difference in temperature between the ice - covered polar regions and the Tropics, which produced a more dynamic exchange of warm and cold air masses.
The warmer temperatures are melting 60 times more snow from Mt. Hunter today than the amount of snow that melted during the summer before the start of the industrial period 150 years ago, according to the study.
While a 16 - year - period is too short a time to draw conclusions about trends, the researchers found that warming continued at most locations on the planet and during much of the year, but that warming was offset by strong cooling during winter months in the Northern Hemisphere.
«We were curious to learn how Earth's carbon cycle responded during periods of rapid warming and periods of less rapid warming,» Ballantyne said.
In nearly every part of the continental United States winter lows were warmer during the second period, rising as much as 2.5 degrees (Fahrenheit) in parts of the Rockies, the northern Great Plains, and central and southern California.
The researchers were surprised to learn that this speeding - up of carbon uptake during periods of slower warming was due mainly to less respiration from plants and not to greater photosynthesis.
«Although the Earth has continued to warm during the temporary slowdown since around 2000, the reduced rate of warming in that period may have lulled us into a false sense of security.
And in many places, it's moving faster than the ice is thought to have retreated during the warming period at the end of the last ice age, around 20,000 years ago.
«It is possible that Svalbard may have provided one such important refuge during warming periods, in which small polar bear populations survived and from which founder populations expanded during cooler periods,» argues biologist Charlotte Lundqvist of the University at Buffalo, The State University of New York, who is a co-author of the new study.
For example, the ice ages during the last several million years — and the warmer periods in between — appear to have been triggered by no more than a different seasonal and latitudinal distribution of the solar energy absorbed by the Earth, not by a change in output from the sun.
The deceleration in rising temperatures during this 15 - year period is sometimes referred to as a «pause» or «hiatus» in global warming, and has raised questions about why the rate of surface warming on Earth has been markedly slower than in previous decades.
In a paper published this month in Geophysical Research Letters, Lovejoy concludes that a natural cooling fluctuation during this period largely masked the warming effects of a continued increase in human - made emissions of carbon dioxide and other greenhouse gases.
Under the model they developed, the scientists say the likelihood of Bd occurrence is predicted to decrease during warmer periods, and when precipitation exceeds an annual rainfall threshold above 1,800 mm per year.
So parts of these ice sheets, but not all, must have melted during the long - ago warm period.
Statistical analysis of average global temperatures between 1998 and 2013 shows that the slowdown in global warming during this period is consistent with natural variations in temperature, according to research by McGill University physics professor Shaun Lovejoy.
DeConto and Pollard's study was motivated by reconstructions of sea level rise during past warm periods including the previous inter-glacial (around 125,000 years ago) and earlier warm intervals like the Pliocene (around 3 million years ago).
The nutritional diversity of these sites allowed hominins to colonise the Atlantic fringe of north west Europe during warm periods of the Pleistocene.
At approximately 90 million years old, the bird fossils are among the oldest avian records found in the northernmost latitude, and offer further evidence of an intense warming event during the late Cretaceous period.
Climate scientists, however, are only too aware of the problems (see Climate myths: It was warmer during the Medieval period), and the uncertainties were both highlighted by Mann's original paper and by others at the time it was published.
Wet and warm summers occurred during periods of Roman and medieval prosperity.
When he lined up their ages with global climate records, he noticed a pattern: Many species of megafauna seemed to disappear during a period of extreme warming around 12,300 years ago, Cooper and his team write today in Science Advances.
The warm Atlantic water continued to flow into the icy Nordic seas during the coldest periods of the last Ice Age.
They predicted how much global warming would be produced by different kinds of power plants during and after their period of operation.
«It is widely thought that during cold periods of the last Ice Age the warm Atlantic water had stopped its flow into the Nordic Seas.
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