And the Challenger mission that started 140 years ago will continue to help Will as he now examines how
ocean warming affects future predictions of surface climate change.
Not exact matches
Global
warming is
affecting oceans, food and water supply, coastal areas and biodiversity, and creating what Gore calls «the largest business opportunity in world history, as the global economy decarbonizes and becomes hyper - efficient.»
Rising temperatures will
warm the
oceans and accelerate melting of land ice,
affecting sea - levels along the California coast.
Of all the possible ways in which climate change could
affect our planet, this is the most bizarre: as the
oceans warm up, Earth will start rotating a wee bit faster, reducing the length of a day.
Places like the southern Indian
Ocean that showed the strongest
warming signal the soonest tend to be the areas that will see the worst
affects of
warming, he explained.
The researchers identified several key circulation patterns that
affected the winter temperatures from 1979 to 2013, particularly the Arctic Oscillation (a climate pattern that circulates around the Arctic
Ocean and tends to confine colder air to the polar latitudes) and a second pattern they call
Warm Arctic and Cold Eurasia (WACE), which they found correlates to sea ice loss as well as to particularly strong winters.
The simulations suggest that over decades, these
warming events dramatically perturb the
ocean surface,
affecting the flow of the Atlantic Meridional Overturning Circulation, a system of currents that acts like a conveyor belt moving water around the planet.
The intensification of winds in the Southern
Ocean is a result of both the depletion of ozone and global
warming's
affects on the Southern Annular Mode (SAM).
Volk: Yeah, yeah that's becoming more and more of a concern as people are realizing that there is not just the greenhouse effect of CO2 being a greenhouse gas and
warming the Earth up, but there is a direct chemical effect of its dissolving in the
ocean as carbonic acid, and this is going to
affect many marine creatures in the coming decades.
The study fuels a growing concern among scientists about the factors
affecting the Antarctic ice sheet — namely, that
warm ocean waters are helping to melt glaciers and drive greater levels of ice loss, particularly in West Antarctica.
«Changes in spawning timing and poleward migration of fish populations due to
warmer ocean conditions or global climate change will negatively
affect areas that were historically dependent on these fish, and change the food web structure of the areas that the fish move into with unforeseen consequences,» researchers wrote.
«How
ocean acidification and
warming could
affect the culturing of pearls.»
As the
ocean warms and fresh water from melting ice increases, scientists have yet to fully know how that will
affect fish communities and coral reefs.
The observed increase in freshwater content will
affect the conditions in all Greenland fjords and may ultimately
affect the global
ocean currents that keep Europe
warm.
«Our research indicates that as global
warming continues, parts of East Antarctica will also be
affected by these wind - induced changes in
ocean currents and temperatures,» Dr Jourdain said.
As global
warming affects the earth and
ocean, the retreat of the sea ice means there won't be as much cold, dense water, generated through a process known as oceanic convection, created to flow south and feed the Gulf Stream.
Predicting the impact of climate change on ecological communities is tricky, but predicting the impact of El Niño, the cyclical
warming in the Pacific
Ocean that
affects temperature and rainfall around the globe, is even trickier.
Lead author, Dr Michael Singer from School of Earth and
Ocean Sciences at Cardiff University, said: «In drylands, convective (or short, intense) rainfall controls water supply, flood risk and soil moisture but we have had little information on how atmospheric
warming will
affect the characteristics of such rainstorms, given the limited moisture in these areas.»
Faster flow is more turbulent, and in this turbulence more heat is mixed into AABW from shallower,
warmer ocean layers — thus
warming the abyssal waters on their way to the Equator,
affecting global climate change.
Vineyards planted at higher altitudes or near the
ocean — such as those in Oregon and Washington and in Argentina's Mendoza Province — will be less
affected by rising temperatures and may continue to benefit from the
warming trend.
But the models also suggest that the scheme could go too far: Adding excess sulfur could increase ice in Antarctica, «overcompensating» for
warming, says Rasch, which could
affect ecosystems and the global
ocean - atmosphere system in a myriad of ways that scientists haven't studied.
The discovery of genes involved in the production of DMSP in phytoplankton, as well as bacteria, will allow scientists to better evaluate which organisms make DMSP in the marine environment and predict how the production of this influential molecule might be
affected by future environmental changes, such as the
warming of the
oceans due to climate change.
«Changes in
ocean conditions that
affect fish stocks, such as temperature and oxygen concentration, are strongly related to atmospheric
warming and carbon emissions,» said author Thomas Frölicher, principal investigator at the Nippon Foundation - Nereus Program and senior scientist at ETH Zürich.
«The main result supports and extends earlier work, showing that human forcing contributes to changing winds that contribute to subsurface
ocean warming,
affecting some grounding zones of the ice sheet,» Alley said.
Predicting the effects of future
ocean warming on biogeochemical cycles depends critically on understanding how existing global temperature variation
affects phytoplankton.
The report found that
ocean warming is
affecting a multitude of
ocean processes, including breeding and migration patterns of
ocean species such as plankton, whales and fish.
Dr Alison Cook, who led the work at Swansea University, says: «Scientists know that
ocean warming is
affecting large glaciers elsewhere on the continent, but thought that atmospheric temperatures were the primary cause of all glacier changes on the Peninsula.
These characteristics lead to important differences in regional rates of surface
ocean warming that
affect the atmospheric circulation.
Future research topics may explore how the distribution of
ocean barrier layers around the world may
affect storms in a
warmer world.
Toby Tyrrell, Professor in Earth System Science at the University of Southampton and co-author of the study, said: «In the future
ocean, the trade - off between changing ecological and physiological costs of calcification and their benefits will ultimately decide how this important group is
affected by
ocean acidification and global
warming.
A variety of studies and analyses suggest that
ocean acidification and
warming affect important services the
ocean provides to ecosystems and humankind.
From his own research in chemical oceanography, along with data from a number of recent studies, Weber points out that some negative consequences of greenhouse gas emissions and
warming «are manifesting faster than previously predicted,» including
ocean acidification and oxygen loss, which are expected to
affect «a large fraction of marine species if current trends continue unchecked.»
There's also plenty they don't know yet — how global
warming might
affect tornadoes, for example, or how quickly the massive ice caps on Greenland and Antarctica could slide into the
oceans.
The IPCC's overall estimate of global sea level rise, which includes all the other factors that
affect sea levels, such as melt from Greenland's ice sheets and the
oceans expanding as they
warm, is 60 cm by 2100 (with a likely range of 42 to 80 cm).
This kind of significant change could increase the rate of
warming already in progress,
affect further sea ice loss in the Arctic and alter shipping access to the Arctic
Ocean.
«Anything contributing to
ocean warming will
affect marine ecosystems,» said Henson, who co-authored a March 7 study in Nature Communications on global
warming impacts to
ocean life.
Significant changes in the circulation of the
ocean could likewise impact fisheries in the United States that can be devastated by
warming waters, thereby
affecting livelihood and food source.
A new paper from the Sea Around Us Project published in the journal Nature reveals that
warmer ocean temperatures are driving marine species towards cooler, deeper waters, and this in turn, has
affected global fisheries catches.
Forest et al. (2006) demonstrate that the inclusion of natural forcing
affects the estimated PDF of climate sensitivity since net negative natural forcing in the second half of the 20th century favours higher sensitivities than earlier results that disregarded natural forcing (Forest et al., 2002; see Figure 9.20), particularly if the same
ocean warming estimates were used.
Because everyone in this global community will be
affected by climate change, it will be for our own benefit if we manage to reduce carbon dioxide emissions in such a way that global
warming is limited to less than 2 degrees Celsius», says Prof. Ulf Riebesell, marine biologist at GEOMAR Helmholtz Centre for
Ocean Research Kiel and coordinator of BIOACID.
Global
warming causes
ocean temperatures to rise, resulting in an increased loss of oxygen, which can then
affect the nitrogen budget across the globe.
Warming air temperatures, melting ice, and shifting currents are totally altering the
ocean ecosystem,
affecting the people, plants, and animals that call it home.
The area is annually
affected by a marine layer caused by the cool air of the Pacific
Ocean meeting the
warm air over the land.
However, this in itself is not enough to define what level of
warming is «dangerous,» especially since the projections of actual impacts for any level of
warming are highly uncertain, and depend on further factors such as how quickly these levels are reached (so how long ecosystems and society have had to respond), and what other changes are associated with them (eg: carbon dioxide concentration, since this
affects plant photosynthesis and water use efficiency, and
ocean acidification).
Because this issue continues to
affect all coupled
ocean - atmosphere models (e.g., 22 — 24), the
warming (Fig. 3) represents the expression of positive biotic feedback mechanisms missing from earlier simulations of these climates obtained with prescribed PI concentrations of trace GHGs.
Ocean serves as the memory whereby slow oceanic Rossby waves and Kelvin waves propagate through the basin and
affect the depth of the oceanic surface layer of
warm water.
2) Anthropogenic global
warming will not
affect the Arctic (or any other region) solely by increasing local temperatures, but also by its complex effects on climate as a whole, which includes
affects on patterns of wind and
ocean currents.
We often see «skeptics» suggest that the additional
warming stored in the
ocean can't possibly come back to
affect tropospheric temperatures in any meaningful way, but the record levels of energy being stored in the Indo Pacific
Warm Pool has impacted and made possible the record tropospheric temperatures Australia saw in 2013.
Scientists are still trying to decide how the poleward heat transport will be
affected by global
warming — but the rapid changes at the poles seem to involve a lot of heat transport into that region via both the atmosphere and the
oceans.
The authors of the study said the change could be temporary, given the short span of observations, but it matches a slight but steady
warming trend in the
affected ocean regions and also matches a pattern scientists have predicted would occur under human - caused global
warming.