Until we clear up whether there has been some kind of
accelerated warming at depth in the real ocean, I think these results serve as interesting hypotheses about why the rate of surface warming has slowed - down, but we still lack a definitive answer on this topic.
Not exact matches
And he ran down SoHe who was only 22 and a Toronto university studying molecular biology and he aimed the steering wheel
at Betty and
accelerated — Betty whose mother had long ago named her Mary Elizabeth — and who was revelling in one of the first
warm April days in her 95th — and last — spring on this spinning orb.
The gathering will draw approximately 400 representatives from other Arctic nations and interested foreign observers, and will give Obama a platform to highlight how changes in the Arctic will affect the rest of the world by
accelerating warming, contributing to sea - level rise and changing precipitation patterns
at lower altitudes.
Given that methane has 20 times the impact of CO2 as a greenhouse gas, such a release could have
accelerated global
warming at that time.
Regardless of how old the polar bear is as a species, or whether it's a species
at all, the purpose of such studies is to gain a better understanding of the great white bear's ability to survive in the Arctic, which is now rapidly transforming as a result of
accelerated global
warming.
Using sediment gathered from the ocean floor in different areas of the world, the researchers were able to confirm that as the ice sheets started melting and the climate
warmed up
at the end of the last ice age, 18,000 years ago, the marine nitrogen cycle started to
accelerate.
At the same time as the surface is cooling, the deeper ocean is
warming, which has already
accelerated the decline of glaciers in the Amundsen Sea Embayment.»
Also
at the AGU meeting, Yasunari's co-author and Goddard colleague William Lau presented the results of a separate study today suggesting that soot heating the atmosphere over India could
accelerate the glacier - melting effects of the
warm currents that rise up to the Himalayan chain, in a «heat pump» effect.
The epicenter of agricultural production has moved north and west over the past half - century, and that trend will likely continue
at an
accelerated pace due to global
warming, a new study finds.
In the past 50 years, as regional temperatures have
warmed, the growth of bristlecone pine trees
at high altitudes has been
accelerating, whereas that of trees lower down the slopes has not, according to the results of a study published November 16 in the Proceedings of the National Academy of Sciences.
When their waters get
warmer, their metabolism
accelerates and they need more oxygen to sustain their body functions,» said William Cheung, co-author of the study, associate professor
at the Institute for the Ocean and Fisheries and director of science for the Nippon Foundation - UBC Nereus Program.
«Without the existence of these proteins that could help phytoplankton cope in these stressful environments, the phytoplankton diversity in many regions of the ocean would be much lower, in particular by reducing large phytoplankton such as diatoms that are known to take up a lot of carbon dioxide, thus possibly
accelerating the pace of a
warming planet,» said Marchetti, assistant professor of marine science
at UNC - Chapel Hill.
«
At the same time as the surface is cooling, the deeper ocean is
warming, which has already
accelerated the decline of glaciers on Pine Island and Totten.
Anthropogenic CO2 emissions are presently increasing every year
at an
accelerating rate, and it is extremely unlikely that humanity will collectively do what is necessary to not only stop that growth in CO2 emissions, but reverse it, and then reduce emissions by 80 percent or more within 5 to 10 years, which is what mainstream climate scientists say is needed to avoid the worst outcomes of anthropogenic global
warming.
And since climate scientists project
at least that much
warming by the middle of the 21st century, global
warming could begin to
accelerate as a result, in what's known as a feedback mechanism.
The
accelerated loss of sea ice should come as no surprise given that another study presented
at the AGU meeting found
accelerated Arctic
warming (see NSIDC: Arctic melt passes the point of no return, «We hate to say we told you so, but we did»):
Their argument goes like this: It is not possible that
warming of the deep ocean
accelerates at the same time as
warming of the upper ocean slows down, because the heat must pass through the upper layer to reach the depths.
However,
at least with NASA GISS, it would appear that there is no statistical basis as of yet to claim that the trend in
warming has reversed itself, slowed or
accelerated from what it was beginning in 1975.
He explains that the sea ice is thinning
at an
accelerating rate, as the Arctic Ocean
warms.
I don't see why Romm comes down so hard on this, though he has a point that the coverage could have made it a lot clearer that the interrupted
warming of the next several years will be made up for
accelerated warming sometime after 2010, so that in the end you wind up
at the same place the uninitialized climate models say you would be.
Of course, it is precisely one of those exceptions that is most concerning to some of us, and Archer himself noted that, «The Siberian margin is one example of a place where methane hydrate is melting today, presumably
at an
accelerated rate in response to anthropogenic
warming.
(Tamino, 2009) clearly shows that surface temperatures north of latitude 60o are
warming at an
accelerated rate in the past few decades.
This instrument delivers important, and sobering, studies — such as the recent finding that as anthropogenic (human - caused)
warming occurs, lakes naturally emit more methane which
accelerates the
warming further (or makes our cuts in emission worth more, if you want to look
at the positive side).
Global
warming is happening
at an
accelerated pace and may have reached its tipping point in the Arctic.
Climate has been
warming at an
accelerated rate for decades.
Momentum is for
warmer GT's, heat radiation can only escape to space
at a regular rate, does not
accelerate outwards because the atmosphere is
warmer, in fact the opposite if the troposphere is higher.
A statistical model (based on the work of Judith Lean
at the Naval Research Laboratory) that accounts for solar variability, El Niño, volcanic activity, and greenhouse
warming indicates that the underlying trend of global
warming has
accelerated over the past 15 years.
But as cogently interpreted by the physicist and climate expert Dr. Joseph Romm of the liberal Center for American Progress, «Latif has NOT predicted a cooling trend — or a «decades - long deep freeze» — but rather a short - time span where human - caused
warming might be partly offset by ocean cycles, staying
at current record levels, but then followed by «
accelerated»
warming where you catch up to the long - term human - caused trend.
Researchers such as James Hansen, a leading climate scientist
at NASA, believe that global
warming is
accelerating and may be approaching a tipping point, a point
at which climate change acquires a momentum that makes it irreversible.
The Zwally paper that established that Antarctica is melting
at an
accelerating rate, as all scientists expect in a
warming world?
Preliminary analysis had already observed that the amount of research endorsing human caused global
warming was increasing
at an
accelerating rate.
That includes
accelerated warming, effects on weather
at lower latitudes, and associated impacts on plants and animals in the region.
Which is bringing
warmer water to the surface
at a pretty rapid rate,
warming the surface and
accelerating the rate
at which this ice is melting.»
At the same time, the overall
warming of the planet has continued, and if anything it has
accelerated.
Whether we look
at the steady increase in global temperature; the buildup of greenhouse gases in the atmosphere to the highest level in a half - million years; the march of
warmest - ever years (9 of the10 hottest on record have occurred since 2000); the dramatic shrinking of mountain glaciers and Arctic sea ice; the
accelerating rise in sea level; or the acidification of our oceans; the tale told by the evidence is consistent and it is compelling.
Their focus appears to be the Arctic, where polar amplification has land surface temperatures
warming at an
accelerated rate.
Researchers have repeatedly warned that climate change puts biodiversity
at risk, especially in the tropical forests, themselves
at risk from global
warming that will have consequences that could in turn
accelerate forest loss and the biodiversity of life sheltered by those forests, embracing both vegetation and the creatures that depend on the vegetation.
The backdrop to the renewed interest in asserting territorial claims on the Arctic and Antarctic by states such as Canada, the United States, Russia and the United Kingdom is that global
warming, and in particular the
warming of oceans, is leading to
accelerating erosion of the ice mass
at both poles.
[18] The report determines that manmade greenhouse gas emissions will
accelerate sea - level rise, increase the intensity and frequency of extreme weather, and
warm the planet
at an unsustainable rate, adversely affecting everything from human and ecosystem health to transportation, forestry, and agriculture.
4) Surface temperatures north of latitude 60 degrees are
warming at an
accelerated rate in the past few decades.
At the same time, the
warming of the oceans — and the
warming of the Earth as a whole — has
accelerated.
If
warming is supposed to happen
at an ever -
accelerating rate, why has EXACTLY THE OPPOSITE happened since 1988?
«When we look
at actual climate data, however, we do not see
accelerated warming in the tropical troposphere.
While the Earth seems to be managing the steady increase in atmospheric carbon dioxide relatively well so far (although the effects of this increase may not be felt for many decades to come), there are concerns that passing the 400 parts per million atmospheric carbon dioxide threshold will bring the Earth's atmosphere closer to a tipping point
at which global
warming accelerates rapidly with dire consequences for mankind and other creatures on Earth.
A future resumption of global
warming at pre-pause rates — or even modestly
accelerated rates — would not validate IPCC global
warming predictions, and would instead continue to undermine the IPCC's predictions of very rapid 21st century global
warming.
As reported by Chris Mooney
at Mother Jones
at the time (now a journalist
at the Washington Post), the draft report warned unequivocally that unchecked greenhouse gas emissions would cause the global
warming trend to «
accelerate significantly,» bringing more heat waves and weather extremes, severe storms, rising seas, devastating floods, prolonged droughts, and more.
Since IPCC's first report in 1990, assessed projections have suggested global average temperature increases [
at least, because of IPCC's
accelerated warming claim] between about 0.15 °C and 0.3 °C per decade for 1995 to 2010.
Record
warm oceans are the bottom line, the overall planetary
warming is
accelerating at blinding speed.
They draw a line on a graph showing the rate of
warming from that unnatural peak in 1998 to now, and make it look like
warming has continued
at a steady pace, and not
accelerated as expected (an argument that would fail any Statistics 101 class, as it ignores «regression to the mean»).
No doubt that is why, although the models predicted that global
warming would
accelerate during the first decade of the 21st century, so far this century there has been no recorded global
warming at all.