Sentences with phrase «overall cooling trend»

Since 1912, a weather station there has observed an overall cooling trend.

The 500 mb level in the N.H. seems to be showing an overall cooling trend of late.

The fraction of individual records that indicates the highest temperatures during 1971 — 2000 decreases with increasing record length, consistent with an overall cooling trend over the past two millennia»

If Northern Hemisphere temperatures have been in an overall cooling trend for two millennia due to «orbital forcing» (i.e. reduced solar irradiance), then the burden of proof becomes greater on those who attribute the warmth of recent decades to solar variability rather than rising greenhouse gas concentrations.

(It is not inconsistent with an overall cooling trend either).

MIS 5e, 7e, and 9 have an early and strong climate optimum which resulted in an overall cooling trend for the plateau.

(It is not inconsistent with an overall cooling trend either).

Not exact matches

I started to think, What if all that variability is not noise in the overall cooling and drying trend, but a very important test of the capacity of a creature to survive?

The fact that the observed long term trend shows warming strongly suggests that there isn't an underlying long term cooling trend and the overall warming is unlikely to be due to natural variability.

Although January, 2018 was a mild one at a mean of 3.8 °C, as measured by the German DWD national weather service, the overall January trend is COOLING.

Overall sales of tablets fell 14.7 percent in the first quarter to 39.6 million units, continuing a downward trend from 2015 when the once - hot market cooled, said the survey by research firm IDC.

The cooling of the 1970s was but a temporary blip in an overall warming trend.

That does not mean that there are not fluctuating warming and cooling periods in between, but the overall trend is cooling.

If the same eruptions had happened near the more recent end of the dataset, they could have pushed the overall trend into negative numbers, or a long - term cooling,» Christy said.

Interestingly, the paper «Climate Trends and Global food production since 1980» (Lobell, Schlenker, Costa - Roberts, in Sciencexpress, 5 May, Science 1204531) confirms my finding of the absence of climate change in the USA: «A notable exception to the [global] warming pattern is the United States, which produces c. 40 % of global maize and soybean and experienced a slight cooling over the period... the country with largest overall share of crop production (United States) showed no [adverse] effect due to the lack of significant climate trends».

Other influences: aerosols, likely cooling, though the temporal variation is key (eg, they are net cooling overall, but their trend in the past 20 years may actually be net warming because of sulfate pollution control in the industrialized nations).

There are always such cases irrespectively of the presence of overall warming trend as under such conditions same places cool and some warm.

This trend would produce an overall cooling of +0.53 °C by 2100AD, if it were to monotonously continue (it won't).

To point out just a couple of things: — oceans warming slower (or cooling slower) than lands on long - time trends is absolutely normal, because water is more difficult both to warm or to cool (I mean, we require both a bigger heat flow and more time); at the contrary, I see as a non-sense theory (made by some serrist, but don't know who) that oceans are storing up heat, and that suddenly they will release such heat as a positive feedback: or the water warms than no heat can be considered ad «stored» (we have no phase change inside oceans, so no latent heat) or oceans begin to release heat but in the same time they have to cool (because they are losing heat); so, I don't feel strange that in last years land temperatures for some series (NCDC and GISS) can be heating up while oceans are slightly cooling, but I feel strange that they are heating up so much to reverse global trend from slightly negative / stable to slightly positive; but, in the end, all this is not an evidence that lands» warming is led by UHI (but, this effect, I would not exclude it from having a small part in temperature trends for some regional area, but just small); both because, as writtend, it is normal to have waters warming slower than lands, and because lands» temperatures are often measured in a not so precise way (despite they continue to give us a global uncertainity in TT values which is barely the instrumental's one)-- but, to point out, HadCRU and MSU of last years (I mean always 2002 - 2006) follow much better waters» temperatures trend; — metropolis and larger cities temperature trends actually show an increase in UHI effect, but I think the sites are few, and the covered area is very small worldwide, so the global effect is very poor (but it still can be sensible for regional effects); but I would not run out a small warming trend for airport measurements due mainly to three things: increasing jet planes traffic, enlarging airports (then more buildings and more asphalt — if you follow motor sports, or simply live in a town / city, you will know how easy they get very warmer than air during day, and how much it can slow night - time cooling) and overall having airports nearer to cities (if not becoming an area inside the city after some decade of hurban growth, e.g. Milan - Linate); — I found no point about UHI in towns and villages; you will tell me they are not large cities; but, in comparison with 20-40-60 years ago when they were «countryside», many small towns and villages have become part of larger hurban areas (at least in Europe and Asia) so examining just larger cities would not be enough in my opinion to get a full view of UHI effect (still remembering that it has a small global effect: we can say many matters are due to UHI instead of GW, maybe even that a small part of measured GW is due to UHI, and that GW measurements are not so precise to make us able to make good analisyses and predictions, but not that GW is due to UHI).

Since the significant global impact of the 1997 - 98 Super El Nino, the overall U.S. has experienced a 16 - year cooling trend of -3.8 °F per century.

But given a cooling trend in the raw data (when you hunt them out instead of relying in the IPCC to «interpret» them for you), it smacks of a possibly strong cooling trend overall.

Therefore the most prominent pattern in the data appears to be that which is shared by all: an overall warming trend, and warming in response to el Nino, cooling in response to la Nina and volcanic eruptions.

If you look closely at the graph you will see that there is an overall slight cooling trend with all the peaks trending lower as well as the base of the troughs.

Obviously, since 1996, the last 18 years has witnessed its normal wide variation in temperature swings but the overall linear trends are cooling for all three datasets, NOT WARMING as predicted.

The underlying long - term warming trend has moderated the effects of the more recent shift of the PDO to its cooler phase in the early 2000s.2, 3 The overall warming has involved more extremely hot days and fewer extremely cold days (Ch.

(Cooling and warming can be also relative to an overall warming trend caused by CO2 and other forcings.)

My conclusion is that a careful observation of weather patterns over the entire globe and, in particular, ascertaining whether there is a net average surface movement of air towards the poles or towards the equator should reveal whether there is an overall global warming or cooling trend at any particular time.

Specific locations can cool or warm, but overall the trend is down for the southern polar region.

By introducing artificial warming in a past record, the overall trend through the present is cooled.»

I do think, however, that it is significant (short term, not a firm trend) that CO2, as measured at MLO, has been increasing at a smaller rate than in previous years despite the fact that overall anthropogenic CO2 output is not decreasing and, furthermore, that the short term trend of the absolute increase is also down which indicates a greater rate of absorption of CO2 than in previous years — which to me would indicate an ongoing cooling of the oceans as per the theory that a cooling ocean absorbs more CO2 while a warming ocean releases more CO2.

Specifically the paleo reconstructions exaggerate the NH summer trend which is cooling, but new winter data shows winters were warming to lead to overall warming.

That could be read to mean the overall long - term trend is supposed to be cooling but we humans mucked it all up and made it warm.

Because the warming of the late twentieth century never completely negated the cooling of the early twentieth century, the overall net trend is actually one of cooling.

The other three scenarios were chosen to test the impacts of likely trends in air conditioning equipment in the city: one for which all evaporative and free cooling systems were replaced by dry systems, and the other two designed on a future doubling of the overall air conditioning power but with different technologies.

«overall in the United States there is a slight downward trend in the number of these extremes despite an overall warming in the mean temperature, but with cooling in the southeastern United States» 8

NASA's Massive Adjustments: 1910 - 2000 Now 53 % Warmer Image Source: climate4you.com In the last 10 years, overseers of the NASA GISS global temperature data set have been busy utilizing cool - the - past - and - warm - the - present adjustment techniques to alter the slope of the overall warming trend.

They both show a dramatic swing out of the last Ice age to warm temps (warmer than now) and then swings in temps both up and down in a periodic fashion with each upward swing in temps topping off less warm than the last one, meaning the overall trend has been gradual cooling since the emergence to warm temps after the last ice age.

Overall, sales have doubled in the last three years, and despite the current economic uncertainties, there are no signs that the trend is cooling off.

«Even with slightly cooling demand, the unshakeable trend of inadequate supply in relation to the overall pool of prospective buyers inflicted upward pressure on home prices in several metro areas,» he said.