Sentences with phrase «measuring warming trends»

The more the measured warming trend drifts away from the alarmists view the larger the apparent natural cooling trend must be.

I have measured a warming trend by analysing atmospheric refraction of the sun, at two distinct climatic locations, 2000 miles apart, and found the sun disk getting bigger every year at both locations, sun disks were especially bigger this year.

Not exact matches

Stephen Harper's opposition to remedial climate measures led to Canada withdrawing from the Kyoto Protocol, an international agreement to reduce greenhouse gases, the immediate cause of the warming trend.

To explore the links between climatic warming and rainfall in drylands, scientists from the Universities of Cardiff and Bristol analysed more than 50 years of detailed rainfall data (measured every minute) from a semi-arid drainage basin in south east Arizona exhibiting an upward trend in temperatures during that period.

The warming trend is the same in rural and urban areas, measured by thermometers and satellites, and by natural thermometers.

If you measure the temperature from a certain place, such as Los Angeles, the development of the past 200 years has made the city much warmer because of all the buildings and roads absorbing solar energy — and naturally the temperature trend is upwards.

If you measure the temperature from a certain place, such as Los Angeles, the development of the past 200 years has made the city much warmer because of all the buildings and roads absorbing solar energy — and naturally the temperature trend is upwards.

Based on physical modelling taking into account measured and astrophysically plausible variations in solar spectral luminosity, and on consistent physical models of the response of he climate system to solar forcing, you can't explain away the 20th / 21st net warming trend with solar effects.

After using satellite data and a smart statistical method to fill gaps in the network of weather stations, the global warming trend since 1998 is 0.12 degrees per decade — that is only a quarter less than the long - term trend of 0.16 degrees per decade measured since 1980.

In the North Atlantic, the measured values differ markedly from the average global warming: the subpolar Atlantic (an area about half the size of the USA, south of Greenland) has hardly warmed up and in some cases even cooled down, contrary to the global warming trend.

Even the most pronounced warming, evident from the cities of Hobart and Melbourne, is within what could be considered natural — though the trends shown here are likely to be artificially exaggerated by the method of measuring temperature since 1996 ** (electronic probes) and the urban heat island (UHI) effect.

These issues, which are either not recognized at all in the assessments or are understated, include: - the identification of a warm bias in nighttime minimum temperatures - poor siting of the instrumentation to measure temperatures - the influence of trends in surface air water vapor content on temperature trends - the quantification of uncertainties in the homogenization of surface temperature data, and the influence of land use / land cover change on surface temperature trends.

; what leads you to believe that the physical and biological trends we've seen / measured are likely to reverse within a mere 20 years, especially if / as we enter a solar upswing; how have you accounted for warming - driven methane release; what credible peer reviewed literature on «the other side» are you describing; what supports your confidence that there is little to no probability that the AGW that you do accept will change weather patterns enough to disrupt crop planting / growing / harvesting / production severely (or do you classify famine as a natural phenomenon?)?

But on the contrary, the Southern Ocean has warmed by around 0.5 °C in the three decades since satellites began measuring sea ice trends.

HadCRUT is the IPCC's gold - standard for measuring global temperatures - over last 15 years (180 months) the globe has cooled with a -0.24 C per century trend, not warmed as predicted

«For climate change, it is the long - term trends that are important; measured over decades or more, and those long term trends show that the globe is still, unfortunately, warming,» according to Skeptical Science.

For more information on this topic a good link is: http://www.climateaudit.org/ As these records may not be as reliable as we would want them to be in consideration of the small degree of warming we are trying to measure, it is perhaps better to rely on other measures, which are more accurate, and do show a recent warming trend.

The «global warming trend» since 1970 has, if anything, slightly increased since 1997 — * if * you are happy to agree that «global warming trend» measured over a period of 27 years or more is a useful measure of global warming.

As can be seen, shorter cooling / warming trends have been highly variable from the very start of recording instrumentally - measured «global» temperatures.

Actually Fielding's use of that graph is quite informative of how denialist arguments are framed — the selected bit of a selected graph (and don't mention the fastest warming region on the planet being left out of that data set), or the complete passing over of short term variability vs longer term trends, or the other measures and indicators of climate change from ocean heat content and sea levels to changes in ice sheets and minimum sea ice levels, or the passing over of issues like lag time between emissions and effects on temperatures... etc..

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).

Amazing how the «long term trend» is COOLING, * NOT * warming, yet the (MUCH) shorter (but measured by more modern means) and relatively meaningless «long term» trend is all they want to talk about.

After that you claimed «HOW you will measure the immeasurable», and I pointed out that the link I already provided was measuring the temperature of the oceans and finding a warming trend.

This time period is too short to signify a change in the warming trend, as climate trends are measured over periods of decades, not years.12, 29,30,31,32 Such decade - long slowdowns or even reversals in trend have occurred before in the global instrumental record (for example, 1900 - 1910 and 1940 - 1950; see Figure 2.2), including three decade - long periods since 1970, each followed by a sharp temperature rise.33 Nonetheless, satellite and ocean observations indicate that the Earth - atmosphere climate system has continued to gain heat energy.34

In the model results, trends in the two measures of tropical lapse rate (TS minus T2LT and TS minus T * T) are almost invariably negative, indicating larger warming aloft than at the surface (Figure 5.4 F, G).

Keeling was a joke, in less than two years of «data gathering» he claimed to have shown a trend and concluded that man - made levels were rising — pretending to be measuring «pristine background levels of carbon dioxide» from the top of the world's highest active volcano, surrounded by active volcanoes on top of a great hot spot creating volcanoes in warm seas rocked by thousands of earthquakes every year.

I've not quoted results here, since it measures land only, which gives stronger warming trends throughout.

However once again the cause of the subsequent warming trend is obscured by the change in the measuring system.

Greenland has seen both warming and cooling trends in the past century.8 However, the warming since 1995 has led to greater changes than any measured since 1950.8,9

All three groups measuring temperatures of the troposphere show a warming trend.

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.

They find that, with an enlarged data set that has corrections for bias between drifting buoy data and data taken from ship intakes, as well as extended corrections for water cooling in buckets in the time between being drawn from the sea and being measured, there is a statistically significant warming trend of 0.086 °C per decade over the 1998 - 2012 period.

What I find most curious about this and other studies involving important global warming issues is that some rather indirect methods are used to measure trends with little attention being paid to better understanding the underlying basics principles and processes involved.

Both trends are heavily impacted by the ENSO cycle, which is one reason why linear regressions for noisy climate data are worthless, but since that is the metric by which global warming is measured, I will provide the result.

The very high significance levels of model — observation discrepancies in LT and MT trends that were obtained in some studies (e.g., Douglass et al., 2008; McKitrick et al., 2010) thus arose to a substantial degree from using the standard error of the model ensemble mean as a measure of uncertainty, instead of the ensemble standard deviation or some other appropriate measure for uncertainty arising from internal climate variability... Nevertheless, almost all model ensemble members show a warming trend in both LT and MT larger than observational estimates (McKitrick et al., 2010; Po - Chedley and Fu, 2012; Santer et al., 2013).

«When compared to the observed response of the climate system, the computer simulations all have forecast warming trends much steeper over the last several decades than measured.

And you AGW - «Skeptics» are the ones who want that the surface temperature analyses which use measurements from meteorological stations were all wrong, because of artefacts in the measured temperature raw data or because of artificially warming trends allegedly introduced by quality control and / or homogenizaton procedures.

The Tropical Tropopause Layer (TTL) is cooling, the stratosphere is drying, the TLT (temperature lower troposphere) trend seems warmer measured from the ground than the basically flat trend of the first couple of kilometers measured from space.

The observed recent warming hiatus, defined as the reduction in GMST trend during 1998 — 2012 as compared to the trend during 1951 — 2012, is attributable in roughly equal measure to a cooling contribution from internal variability and a reduced trend in external forcing (expert judgement, medium confidence).

In an interview, Dr. Lindzen acknowledged the arctic warming trend and slight global warming measured in the last century, but said it all is well within the realm of natural variation or measurement error — and not yet within our power to understand.

«n summary, the observed recent warming hiatus, defined as the reduction in GMST trend during 1998 — 2012 as compared to the trend during 1951 — 2012, is attributable in roughly equal measure to a cooling contribution from internal variability and a reduced trend in external forcing (expert judgment, medium confidence).

Once the SOI is subtracted from the GMST instance (i.e. the current data), what is left is a truer measure of the warming trend.

This has not resulted in some small change to the temperatures as measured at Amberley, but rather a change in the temperature trend from one of cooling to dramatic warming; this is also what was done to the minimum temperature series for Rutherglen — and also without justification.

Perhaps Eli might introduce the Masupial - McKitrick null hypothesis that the trend has not been greater that oh, 0.025 K / yr, Since the measured trends have pretty much all been ABOVE zero, the Marsupial - McKitrick null hypothesis can not be rejected for longer than the raw McKitrick and global warming is out of control.

I'm suggesting that if this is going to be interpreted as a study of the impact of global warming, maybe a more conservative measure would be to monte carlo a world in which the 1930s trend repeated itself (a simple proxy for AMO), instead of a world with no trend.

The warming trend is the same in rural and urban areas, measured by thermometers and satellites, and by natural thermometers.

Temperatures measured on land and at sea for more than a century show that Earth's globally averaged surface temperature is experiencing a long - term warming trend.

If greenhouse warming causes a substantial increase in hurricane activity, then the century scale increase in global and tropical Atlantic SSTs since the late 1800s should have been accompanied by a long - term rising trend in measures of Atlantic hurricanes activity.

-LCB- 9.4, Box 9.2 -RCB- • The observed reduction in surface warming trend over the period 1998 to 2012 as compared to the period 1951 to 2012, is due in roughly equal measure to a reduced trend in radiative forcing and a cooling contribution from natural internal variability, which includes a possible redistribution of heat within the ocean (medium confidence).

For climate change, it is the long term trends that are important; measured over decades or more, and those long term trends show that the globe is still, unfortunately, warming.