The governing hypothesis is that if
warming temperatures lead to ice melt, cooler temperatures are likely to help slow or even stop that melt.
Warmer temperatures leads to earlier melting of the snow, he said, and that is a well - documented phenomenon throughout the western United States.
Their high mass leads to easier radial velocity and microlensing observations, and their large size and young
warmer temperatures lead to easier transiting and direct imaging detections.
Unprecedented
warm temperatures lead to the loss of more than half of the sea ice cover in the Bering Sea in two weeks, resulting in record lows for Arctic Ocean sea ice extent for the month of February.
Jim has assumed that
warmer temperatures lead to less cloud — and not that less cloud leads to warmer temperatures.
Furthermore, restricting this compilation to trees that are positive responders (where
warmer temperatures lead to enhanced tree growth) excludes records that exhibit a significant and negative association with temperature as a secondary effect of moisture stress.
Not exact matches
Chances are that a crying baby would work as efficient reminder that the milk is still in the
warmer but this may also
lead to overheating of the milk and unnecessary prolonged exposure of fragile breastmilk to high
temperatures.
Coral bleaching is the most immediate threat to reefs from climate change; it's caused when ocean
temperatures become
warmer than normal maximum summer
temperatures, and can
lead to widespread coral death.
That doesn't mean global
warming isn't a serious threat to Bangladesh, which is generally considered among the nations most vulnerable to rising
temperatures, said
lead author Leslie Wallace Auerbach.
Higher sea surface
temperatures led to a huge patch of
warm water, dubbed «The Blob,» that appeared in the northern Pacific Ocean more than two years ago.
Lead researcher Alex Chepstow - Lusty of French Institute of Andean Studies in Lima, Peru, says
warmer temperatures enabled the Inca to build mountainside terraces for growing crops at altitudes previously too cold to support agriculture, and provided meltwater from the Andean glaciers for irrigation (Climate of the Past, vol 5, p 375).
They estimate that, across about 60 % of the global vegetated area, greening has buffered
warming by about 14 %; for the remaining areas, which mostly include boreal zones, LAI trends have amplified the raise in air
temperatures,
leading to an additional
warming of about 10 %.
The finding surprised the University of Arizona -
led research team, because the sparse instrumental records for sea surface
temperature for that part of the eastern tropical Pacific Ocean did not show
warming.
A team of researchers
led by the German Centre for Integrative Biodiversity Research (iDiv) and Leipzig University carried out an experiment to simulate the
warming of the soil in the forest and found out surprisingly: The
warmer temperatures have no influence on the feeding activity of the soil animals.
More methane
leads to
warmer temperatures and even more thawing permafrost.
With previous studies showing that higher
temperatures, caused by global
warming, have
led to more unstable mountain rocks — the scientists, who took part in the new study, believe that using the two monitoring techniques together could prove vital for thousands of skiers and mountain climbers who undertake trips every year.
One factor is that researchers have found
warmer temperatures increase the number of young produced by the gloomy scale insect — a significant tree pest — by 300 percent, which in turn
leads to 200 times more adult gloomy scales on urban trees.
Scientific observations show that in the Arctic,
warming temperatures have
led to a 75 % loss in sea ice volume since the 1980s, and recent reports suggest the Arctic Ocean will be nearly free of summer sea ice by 2050, said Sullivan.
Warmer - than - average spring
temperatures reduce upper Colorado River flows more than previously recognized, according to a new report from a University of Arizona -
led team.
The results — along with a recent Dartmouth -
led study that found air
temperature also likely influenced the fluctuating size of South America's Quelccaya Ice Cap over the past millennium — support many scientists» suspicions that today's tropical glaciers are rapidly shrinking primarily because of a
warming climate rather than declining snowfall or other factors.
Events like this occurred in most years once global
temperatures reached 1.5 °C and 2 °C
warmer than pre-industrial times,» said
lead author Dr Andrew King.
In June 2015, NOAA researchers
led by Thomas Karl published a paper in the journal Science comparing the new and previous NOAA sea surface
temperature datasets, finding that the rate of global
warming since 2000 had been underestimated and there was no so - called «hiatus» in
warming in the first fifteen years of the 21st century.
The recent slowdown in global
warming has brought into question the reliability of climate model projections of future
temperature change and has
led to a vigorous debate over whether this slowdown is the result of naturally occurring, internal variability or forcing external to Earth's climate system.
Jet engine exhaust emits carbon dioxide, which drives climate change by
warming the atmosphere,
leading to increasing global
temperatures, rising seas and extreme weather.
His discoveries have also revealed how
warming ocean
temperatures and acidification of ocean water caused by climate change
lead to coral bleaching and death.
The research shows that a one degree rise in tropical
temperature leads to around two billion extra tonnes of carbon being released per year into the atmosphere from tropical ecosystems, compared with the same tropical
warming in the 1960s and 1970s.
Deep lakes
warm very slowly in the spring, and small changes in water
temperature at the end of winter can
lead to large changes in the timing of summer stratification for these lakes.
Finally, one recent study suggests that incomplete sampling of Arctic
temperatures led to underestimation of how much the globe actually
warmed.
«We examined average and extreme
temperatures because they were always projected to be the measure that is most sensitive to global
warming,» said
lead author from the ARC Centre of Excellence for Climate System Science, Dr Andrew King.
Both the moderate and the faster increases in
temperature would
lead to water that is
warmer, saltier and less muddy.
«Combined with
warmer ocean
temperatures throughout the year, this
leads to a longer growing season and faster plankton growth rates.
Warmer air can carry more moisture, which can lead to more extreme rainfall events, and warmer ocean surface temperatures are known to intensify the most powerful hurri
Warmer air can carry more moisture, which can
lead to more extreme rainfall events, and
warmer ocean surface temperatures are known to intensify the most powerful hurri
warmer ocean surface
temperatures are known to intensify the most powerful hurricanes.
«When we included projected Antarctic wind shifts in a detailed global ocean model, we found water up to 4 °C
warmer than current
temperatures rose up to meet the base of the Antarctic ice shelves,» said
lead author Dr Paul Spence from the ARC Centre of Excellence for Climate System Science (ARCCSS).
Five consecutive years of severe drought in California, a dramatic rise in bark beetle infestation and
warmer temperatures are
leading to these historic levels of tree die - off.
This interplay between climate and wind can
lead to sea level rise simply by moving water from one place in the ocean to another, said Greene — no
warming of the air, or of ocean
temperatures required.
The argument is that the increased separation of the Antarctic land mass from South America
led to the creation of the powerful Antarctic Circumpolar Current which acted as a kind of water barrier and effectively blocked the
warmer, less salty waters from the North Atlantic and Central Pacific from moving southwards towards the Antarctic land mass
leading to the isolation of the Antarctic land mass and lowered
temperatures which allowed the ice sheets to form.
The report, written and reviewed by
leading U.S. scientists as part of the National Climate Assessment, reinforces that
warming temperatures and extreme weather around the globe are «extremely likely» to be the result of carbon pollution from human activities.
After examining cloud cover and cosmic ray fluxes, Svensmark concluded that declines in cosmic rays
lead to fewer clouds, implying that an active sun could
lead to
warmer surface
temperatures.
El Niño has helped to boost
temperatures this year, as it
leads to
warmer ocean waters in the tropical Pacific, as well as
warmer surface
temperatures in many other spots around the globe, including much of the northern half of the U.S..
When the AMO is in its positive phase and the sea surface
temperatures are
warmer, the study has shown that the main effect in winter is to promote the negative phase of the NAO which
leads to «blocking» episodes over the North Atlantic sector, allowing cold weather systems to exist over the eastern US and Europe.
Warming winter
temperatures led to rapid environmental changes that allowed the northward expansion of Neolithic farmers toward mainland Europe, and the rapid population of the continent.
Warmer temperatures in the autumn may help the insect embryos develop faster,
leading to live births
«These
temperatures are likely because the universe then was
warmer than today and the gas was unable to cool effectively,» explains
lead author and PhD student Shmuel Bialy of Tel Aviv University.
In general,
warmer ocean
temperatures at the end of the Amazon's wet season
lead to reductions in rainfall and soil moisture at the beginning of the dry season.
However, the research also showed that a sharp reduction in the emissions of certain pollutants would
lead to dramatically decreased levels of ozone even as
temperatures warm.
This is important not only because it means that global
warming could alter the ecotoxicity of
lead, but also because Daphnia experiments are customarily done at a single
temperature in each study.
Warmer global
temperatures will
lead to shallower snowpack in many mountainous areas, says Keith Musselman, a hydrologist at the National Center for Atmospheric Research in Boulder, Colorado.
«We found that where ocean
temperatures warmed beyond a certain point as we neared the equator, at about 29 degrees, the pace of larval development slowed,» says study
lead author, Dr Ian McLeod.
As escalating amounts of carbon dioxide are introduced into the atmosphere, a chain reaction is induced,
leading to increasingly
warmer temperatures, Pelini said.
This is because
warmer temperatures and other changes in the atmosphere related to a changing climate, including higher atmospheric levels of methane, spur chemical reactions that
lead to ozone.