Sentences with phrase «temperatures on a global scale»

To answer this question, one needs to look beyond warming in a few regions and view temperatures on a global scale.

We have been told, well screamed at really, that CO2 is causing unprecedented rise of temperature on a global scale.

According to the authors, «if you reconstruct temperatures on a global scale — and not just examine Antarctic temperatures — it becomes apparent that the CO2 change slightly preceded much of the global warming, and this means the global greenhouse effect had an important role in driving up global temperatures and bringing the planet out of the last Ice Age.»

The researchers, most of them based at Columbia University's Lamont - Doherty Earth Observatory, say it cements the theory that atmospheric moisture, and thus dust, move in close step with temperature on a global scale; the finding may in turn help inform current ideas to seed oceans with iron - rich dust in order to mitigate global warming.

Not exact matches

Whereas carbon levels can affect warming on a global scale, the effects of increased albedo and poor evotranspiration would affect temperatures only on a regional level.

«This work makes us think that increasing urbanization and rising temperatures associated with global climate change could lead to increases in scale insect populations, which could have correspondingly negative effects on trees like the red maple,» Dale says.

Professor Jim Haywood, from the Mathematics department at the University of Exeter and co-author of the study added: «This research shows how a global temperature target such as 1.5 or 2C needs to be combined with information on a more regional scale to properly assess the full range of climate impacts.»

However, on a global scale variability is mostly driven by temperature fluctuations, the research showed.

To remove this difference in magnitude and focus instead on the patterns of change, the authors scaled the vertical profiles of ocean temperature (area - weighted with respect to each vertical ocean layer) with the global surface air temperature trend of each period.

On shorter time scales, however, changes in heat storage (i.e., ocean heat uptake or release) can affect global mean temperature.

Solar cycles also have global temperature implications, although on a much smaller scale.

If one is looking for real differences among mainstream scientists, they can be found on two fronts: the precise implications of those higher temperatures, and which technologies and policies offer the best solution to reducing, on a global scale, the emission of greenhouse gases.

One finds on the secular time scale that both of the X - and Y - component temporal, annual - means profiles of the Earth's Orientation mimic exactly the Global Temperature Anomaly (GTA) annual means profile On the decade time scale one finds that the GTA mimics the Geomagnetic Dipole variations and the variations in the Earths Anomalous Rotation Rate [i.e., Excess Length of Day (ELOD) Annual Meanson the secular time scale that both of the X - and Y - component temporal, annual - means profiles of the Earth's Orientation mimic exactly the Global Temperature Anomaly (GTA) annual means profile On the decade time scale one finds that the GTA mimics the Geomagnetic Dipole variations and the variations in the Earths Anomalous Rotation Rate [i.e., Excess Length of Day (ELOD) Annual MeansOn the decade time scale one finds that the GTA mimics the Geomagnetic Dipole variations and the variations in the Earths Anomalous Rotation Rate [i.e., Excess Length of Day (ELOD) Annual Means].

«it is a proven fact that lighter surfaces within our urban environments will decrease climate temperatures if implemented on a global scale.

... Polar amplification explains in part why Greenland Ice Sheet and the West Antarctic Ice Sheet appear to be highly sensitive to relatively small increases in CO2 concentration and global mean temperature... Polar amplification occurs if the magnitude of zonally averaged surface temperature change at high latitudes exceeds the globally averaged temperature change, in response to climate forcings and on time scales greater than the annual cycle.

There's a slow cooling trend, as expected from the slowly decreasing insolation (the Milankovitch cycle), followed by an unexpected temperature spike at the end — the result of fossil fuel combustion on a global scale.

Pay particular attention to the temperature scale on the left hand side — 1 cm is equivalent to 0.2 degrees centigrade — and think about what we are trying to measure — the global average temperature, all of it, oceans, atmosphere and continents.

Even if it were real physical variability, at that short time scale I would not expect it to be linked to global temperature in the way that I expect this link on longer time scales.

Action on climate change needs to be scaled up and accelerated without delay if the world is to have a running chance of keeping a global average temperature rise below 2 degrees Celsius this century.

The new research is a regional climate study of historical sea level pressures, winds and temperatures over the eastern Pacific Ocean and draws no conclusions about climate change on a global scale.

AR5 section 9.5.3 concludes «Nevertheless, the lines of evidence above suggest with high confidence that models reproduce global and NH temperature variability on a wide range of time scales.»

Previous studies have focused on hemispheric or global - scale temperature reconstructions, which are useful for understanding overall average conditions, but can overlook important differences at regional scales.

The fact that you CAN ignore everything else and get good agreement with the basic global surface temperature indicates that you CAN ignore everything else on a global scale.

But since we seem to have determined that global mean temperatures do tend to track global mean forcings, the interesting science is now in determining the regional scale at which we can still make useful statements — and whether a forcing is «first order» or not will depend quite crucially on what the scale is.

If one is looking for real differences among mainstream scientists, they can be found on two fronts: the precise implications of those higher temperatures, and which technologies and policies offer the best solution to reducing, on a global scale, the emission of greenhouse gases.

-- It is virtually certain that increases in the frequency of warm daily temperature extremes and decreases in cold extremes will occur throughout the 21st century on a global scale.

«The forecast for global mean temperature which we published highlights the ability of natural variability to cause climate fluctuations on decadal scale, even on a global scale.

But I would suppose that equilibrium climate sensitivity [background] and even global mean surface temperature on a decadal scale could be better nailed down by model pruning and better ocean data.

If you are of the opinion that temperature variability on a short time scale is insignificant, how can we declare as fact that the rise in global temperature over the past 50 years is incontrovertibly tied to the increase in CO2 levels?

Since humans began burning fossil fuels on a large scale, the global average temperature has risen 1.4 degrees Fahrenheit (0.8 degrees Celsius), with most of the increase occurring since 1970.

``... it is now very likely that anthropogenic forcing has contributed to the observed changes in the frequency and intensity of daily temperature extremes on the global scale since the mid-20th century.

«Committed terrestrial ecosystem changes due to climate change» When trying to position the Amazon tipping point on the scale of the global temperature rise, one of the most - often cited studies is one from the year 2009, performed by a team of researchers of the UK Met Office Hadley Centre, led by Chris Jones and published in Nature Geoscience.

This was a very basic attempt to approximate the effects of natural variables on global temperatures, using scaling and lags that were eye - balled.

However, models would need to underestimate variability by factors of over two in their standard deviation to nullify detection of greenhouse gases in near - surface temperature data (Tett et al., 2002), which appears unlikely given the quality of agreement between models and observations at global and continental scales (Figures 9.7 and 9.8) and agreement with inferences on temperature variability from NH temperature reconstructions of the last millennium.

100 % certainty means we know every possible potential driver of global temperature on the scales of subatomic particles, atoms and molecules, the microscopic, the macroscopic, the Earth, the Solar System, the galaxy, and the Universe.

It would be interesting to overlay the first chart with average global air temperatures (putting the scale on the right hand side).

SkyPower, the world's largest developer and owner of utility - scale solar energy projects, is proud to announce its landmark partnership agreement with COP21, the UN Framework Convention on Climate Change, which delegations representing over 150 countries will attend in Paris for 12 days with the objective of reaching a universal agreement on how to slow the rise of global temperatures.

It remains that there are no evidence lines on a global scale that indicate the planetary temperature is either stable or cooling, or that it is natural cycle.

The desire to avoid large ice sheet shrinkage and sea level rise implies a need to get global temperature back into or close to the Holocene range on the time scale of a century or less.

Paleontological records indicate that global mean sea level is highly sensitive to temperature (7) and that ice sheets, the most important contributors to large - magnitude sea - level change, can respond to warming on century time scales (8), while models suggest ice sheets require millennia to approach equilibrium (9).

On a longer time scale, global average surface temperatures have risen at a rate of about 0.70 °C per century.

Global Temperature is an example of a bulk property, and it does indeed average out over sufficient time scales; hence showing that whatever chaos, spatio - temporal or otherwise, is present in the system on short timescales it does not affect our longer term predictions.

It is a big enough perturbation on timescales of multiple decades or longer to dominate the temperature pattern on a global scale, despite the existence of chaotic elements responsible for fluctuations in the temperature trend globally that average out, and despite significant unpredictability regionally.

I find the focus on tree rings disturbing, because while they will show the annual variation in temperature they will tend to minimize the centuries - long variations, This got me thinking: Could it be that three ring growth as climate proxies, are NOT scale invariant (micro vs global climates?

They clearly have not «proved» skill at predicting in a hindcast mode, changes in climate statistics on the regional scale, and even in terms of the global average surface temperature trend, in recent years they have overstated the positive trend.

However, this relationship (which, contrary to the claim of MFC09, is simulated by global climate models, e.g. Santer et al. [2001]-RRB- can not explain temperature trends on decadal and longer time scales.»

Better understanding of the thermal processes and effects that OTEC operations has on ocean temperatures and vice versa is important to predict energy yield potential on both local (site - specific) and global scales.

Note: The scaled red NCDC monthly global temperature anomaly curve and the monthly cumulative CO2 increase are superimposed on the satellite reflected sunlight chart.

On the bigger scale of things, then, taking carefully - selected bits of the temperature - record that are way too short to be anything but noise, and using them to try and pretend that global warming has stopped, is such a popular contrarian trick that we illustrated it with «The Escalator»:

On a global scale, the cooling effect of carbon sequestration dominates and, in this work, afforestation of all the climatically viable cropland gave a global temperature reduction of 0.45 oC by the end of this century.