Sentences with phrase «larger warming associated»

Temperatures in the Atlantic region are projected to increase despite such changes due to the much larger warming associated with projected increases of greenhouse gases.

Not exact matches

Researchers used data from the two countries because they «are the world's two largest emitters of greenhouse gases and responsible for about one - third of global warming to date,» said Longjian Liu, M.D., Ph.D., lead study author and an associate professor of epidemiology and biostatistics at Drexel University in Philadelphia, Pennsylvania.

The warm ocean water presently melting Totten Glacier — East Antarctica's largest glacier, which flows from the Aurora Basin — could be an early warning sign, said co-lead author Amelia Shevenell, an associate professor in the University of South Florida College of Marine Science.

And is the current large scale ablation seen on these glaciers due to these glaciers coming to some equilibrium with a warmer world due to coming out of the LIA and response times associated with the large masses involved?

This large uncertainty makes it difficult for a cautious policy maker to avoid either: (1) allowing warming to exceed the agreed target; or (2) cutting global emissions more than is required to satisfy the agreed target, and their associated societal costs.

Fossil fuel emissions of 1000 GtC, sometimes associated with a 2 °C global warming target, would be expected to cause large climate change with disastrous consequences.

I don't say that lightly, and maybe it's weird to associate what is essentially a marketplace with such warm feelings, but there are so many innovative, interesting, often marginalized folks releasing work here that it feels crucial and almost revolutionary in a field that is dominated (as so many fields are) by large commercial interests.

«The results suggest not all the large changes seen in Arctic climate in recent years are a result of long - term trends associated with global warming.

``... the company [Exxon Mobil], the world's largest oil and gas concern, has increased donations to Washington - based policy groups that, like Exxon itself, question the human role in global warming and argue that proposed government policies to limit carbon dioxide emissions associated with global warming are too heavy handed.

You keep ignoring the fact that there is no evidence for methane burps associated with conditions in the relatively recent past (early Holocene, Eemian) for which there is good evidence for warmer Arctic conditions than now, and you are happy to extrapolate emissions of a few Tg (at most) to values 1000 times larger on the basis of nothing very much.

Re 392 Chris Dudley — I don't understand what you mean by R ^ 2T ^ 4 — and there should be something about how optical depth is proportional to R, and also, if you're going a significant distance toward the center of such an object, there is the issue of spherical geometry; if the optical thickness is large enough across small changes in radius, then you don't need to account for the spherical geometry in the calculation of the flux per unit area as a function of the temperature profile and optical thickness; however, the flux per unit area outward will drop as an inverse square, except of course within the layers that are being heated through a different process (SW heating for a planet, radioactivity, latent and sensible heat loss associated with a cooling interior, gravitational potential energy conversion to enthalpy via compression (adiabatic warming) and settling of denser material under gravity (the later both leads to compression via increased pressure via increased gravity within the interior, and also is a source of kinetic energy which can be converted to heat)...

Consenquently, the associated SST pattern is slightly cooler in the deep convection upwelling regions of the Equitorial Pacific and the Indian Ocean, strongly cooler in the nearest deep convection source region of the South Atlantic near Africa and the Equator, warm over the bulk of the North Atlantic, strongly warmer where the gulf stream loses the largest portion of its heat near 50N 25W, and strongly cooler near 45N 45W, which turns out to be a back - eddy of the Gulf Stream with increased transport of cold water from the north whenever the Gulf Stream is running quickly.

Large uncertainties associated with estimates of past solar forcing (Section 2.7.1) and omission of some chemical and dynamical response mechanisms (Gray et al., 2005) make it difficult to reliably estimate the contribution of solar forcing to warming over the 20th century.

There's very strong evidence for intense volcanic activity associated with the North Atlantic Igneous Province (yes yet another Large Igneous Province associated with a warming event) ocurring at exactly the time of the PETM, See:

There have been very good studies associating past increases in CO2 (most likely from large increases in vulcanism) with past episodes of extreme global warming (like those extreme warming episodes that are now believed to have initiated the creation of the oil and gas deposits we extract and burn today)..

They found that the diatom - rich sediments, deposited during the warm intervals, were predominantly composed of material from one terrane - the Jurassic to Cretaceous volcanic rocks and associated sedimentary rocks of the Ferrar Large Igneous Province (FLIP).

As the Arctic warms up it slows the weather - steering jet stream, «which leads to large persistent meanders in the jet stream associated with persistent weather extremes.

I don't have a large network of liberal, middle, and conservative friends and associates, and I obviously can't read everything, but my sense is that a majority of Californians remain more interested in trying to prevent future warming than in trying to prepare for the weather fluctuations that will persist.

Previous large natural oscillations are important to examine: however, 1) our data isn't as good with regards to external forcings or to historical temperatures, making attribution more difficult, 2) to the extent that we have solar and volcanic data, and paleoclimate temperature records, they are indeed fairly consistent with each other within their respective uncertainties, and 3) most mechanisms of internal variability would have different fingerprints: eg, shifting of warmth from the oceans to the atmosphere (but we see warming in both), or simultaneous warming of the troposphere and stratosphere, or shifts in global temperature associated with major ocean current shifts which for the most part haven't been seen.

This ends up changing estimates of cumulative carbon emissions since the pre-industrial period, but given the large uncertainties involved the authors caution against using these revisions to draw conclusions about remaining carbon budgets associated with staying within the 2C or 1.5 C warming targets.

Although it can not be discounted that long - term warming is affecting this circulation in some way, a large part of this recent behavior is likely to be natural variation associated with the vigorous or sluggish phases of the ocean circulation.

Owing to the decreased number of spatial degrees of freedom in the earliest reconstructions (associated with significantly decreased calibrated variance before e.g. 1730 for annual - mean and cold - season, and about 1750 for warm - season pattern reconstructions) regional inferences are most meaningful in the mid 18th century and later, while the largest - scale averages are useful further back in time.

Consequently, for large hard emissions floors, atmospheric levels of CO2 continue to rise throughout our 750 - year simulation, and are still increasing at the end of the experiment, along with associated levels of mean global warming.

Increased weed and pest pressure associated with longer growing seasons and warmer winters will be an increasingly important challenge; there are already examples of earlier arrival and increased populations of some insect pests such as corn earworm.64 Furthermore, many of the most aggressive weeds, such as kudzu, benefit more than crop plants from higher atmospheric carbon dioxide, and become more resistant to herbicide control.72 Many weeds respond better than most cash crops to increasing carbon dioxide concentrations, particularly «invasive» weeds with the so - called C3 photosynthetic pathway, and with rapid and expansive growth patterns, including large allocations of below - ground biomass, such as roots.73 Research also suggests that glyphosate (for example, Roundup), the most widely - used herbicide in the United States, loses its efficacy on weeds grown at the increased carbon dioxide levels likely to occur in the coming decades.74 To date, all weed / crop competition studies where the photosynthetic pathway is the same for both species favor weed growth over crop growth as carbon dioxide is increased.72

That earlier warming was associated with a large calving event of the Pine Island Glacier that likely occurred in association with an EL Nino event.

Both wetland drying and the increased frequency of warm dry summers and associated thunderstorms have led to more large fires in the last ten years than in any decade since record - keeping began in the 1940s.9 In Alaskan tundra, which was too cold and wet to support extensive fires for approximately the last 5,000 years, 105 a single large fire in 2007 released as much carbon to the atmosphere as had been absorbed by the entire circumpolar Arctic tundra during the previous quarter - century.106 Even if climate warming were curtailed by reducing heat - trapping gas (also known as greenhouse gas) emissions (as in the B1 scenario), the annual area burned in Alaska is projected to double by mid-century and to triple by the end of the century, 107 thus fostering increased emissions of heat - trapping gases, higher temperatures, and increased fires.

Midlatitude synoptic storms (Fig. 9), associated with low and high pressure centers and warm and cold fronts, are the largest in scale (a thousand kilometers or more) of all storm types.

Correction: the second source doesn't imply this, they say it:» The results suggest not all the large changes seen in Arctic climate in recent years are a result of long - term trends associated with global warming.»

Second link:» The results suggest not all the large changes seen in Arctic climate in recent years are a result of long - term trends associated with global warming.»

At the same time, the company, the world's largest oil and gas concern, has increased donations to Washington - based policy groups that, like Exxon itself, question the human role in global warming and argue that proposed government policies to limit carbon dioxide emissions associated with global warming are too heavy handed.

It was helped along the way by a large El Niño event, which tends to be associated with warmer temperatures globally.

This is obviously a very large step - change, remembering that the entire temperature increase associated with global warming over the 20th century is generally considered to be in the order of 0.9 °C.

* «UK rainfall shows large year to year variability, making trends hard to detect» * «While connections can be made between climate change and dry seasons in some parts of the world, there is currently no clear evidence of such a link to recent dry periods in the UK» * «The attribution of these changes to anthropogenic global warming requires climate models of sufficient resolution to capture storms and their associated rainfall.»

Recent studies have found a large, sudden increase in observed tropical cyclone intensities, linked to warming sea surface temperatures that may be associated with global warming (1 - 3).

The period since 1970 is the period associated with the largest greenhouse warming signal, which coincides with the data set on tropical cyclones that is available.

«Large uncertainties associated with estimates of past solar forcing (Section 2.7.1) and omission of some chemical and dynamical response mechanisms make it difficult to reliably estimate the contribution of solar forcing to warming over the 20th century.»

The largest extinction event to have impacted animals and plants is intimately associated with evidence of global warming.

For example, the warm - water phase of ENSO is associated with large - scale changes in plankton abundance and associated impacts on food webs (Hays et al., 2005), and changes to behaviour (Lusseau et al., 2004), sex ratio (Vergani et al., 2004) and feeding and diet (Piatkowski et al., 2002) of marine mammals.

«Fossil fuel emissions of 1,000 gigaton, sometimes associated with a 2C global warming target, would be expected to cause large climate change with disastrous consequences.

«Our results suggest that the decline of the world's grasslands may result in large part from positive feedback between warming - associated drought events and reductions in grasslands» potential production,» said George Hendrey of City University of New York.

Gross points out that the program reflects a number of important trends, including (1) A Touch of Conscience (where most companies pay lip service to concerns like global warming or poverty); (2) The New Guilded Age (where fat and happy law firms think nothing of the absurdity of giving students a $ 60 allowance for lunch); (3) Defining Public Service Down (a situation where most people claim interest in community service but don't want the lower incomes that go with it, so they find a win - win situation like doing pro bono at a large firm); and (4) It's Good To Be the King (describing how partners set priorities and realize that the $ 15 lunch is quicker and gets associates back to billing more quickly and spares partners from socializing).

Specifically, negative emotional reactivity has been found to predict both internalizing problems (e.g., anxiety, depression) and externalizing problems (e.g., aggression, rule - breaking).1 Fearfulness predicts internalizing problems, and self - regulation difficulties predict externalizing problems.1 The large literature on parenting2 generally shows that high levels of warm and firm parenting are associated with positive child development.4