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.