Sentences with phrase «recent global observations»
References: recent global observations of co2 fertilization effects.
https://wattsupwiththat.com/ Not exact matches
His observation follows a recent conference in which his colleague, PIMCO CEO Mohamed El - Erian, said, «We are experiencing a global realignment our children and grandchildren will talk about.»
To get around the problem, Fasullo and Trenberth decided to examine how well 16 global climate models reproduce recent satellite observations of relative humidity in the tropics and subtropics, a quantity that is directly related to cloud formation.
The model is supported by observations from satellites, ground - based networks that measure ozone - depleting chemicals in the real world, and by observations from two decades of NASA aircraft field campaigns, including the most recent Airborne Tropical Tropopause Experiment (ATTREX) in 2013 and the Atmospheric Tomography (ATom) global atmospheric survey, which has made three deployments since 2016.
For global observations since the late 1950s, the most recent versions of all available data sets show that the troposphere has warmed at a slightly greater rate than the surface, while the stratosphere has cooled markedly since 1979.
Instead, the web special opened with «Estimates of future global temperatures based on recent observations must account for the differing characteristics of each important driver of recent climate change», which sounds a bit ho - hum, if not, well, duh?
A very recent study by Saba et al. (2015) specifically analyzed sea surface temperatures off the US east coast in observations and a suite of global warming runs with climate models.
In a brief mention of the work in a recent piece on the World Bank's new behavioral approaches to global development, The Economist took note of how such small policy tweaks — rooted in observation of how people actually behave, rather than in an expectation that they'll behave rationally — may change the way development policy is implemented and assessed.
global average sfc T anomalies [as] indicative of anomalies in outgoing energy... is not well supported over the historical temperature record in the model ensemble or more recent satellite observations
Just to try to summarize what you say in your post, we can say: «according to the most recent observations (say last 10 years) one can declare that global warming is going on its way without any explainable change».
Instead, the web special opened with «Estimates of future global temperatures based on recent observations must account for the differing characteristics of each important driver of recent climate change», which sounds a bit ho - hum, if not, well, duh?
No doubt the southern ocean, featured strongly by Hansen et al, plays an important role, but data there are poor, and change is not well known; in particular the recent hiatus in global warming greatly influences any observations, which can therefore be quite misleading wrt trends.
Updated, 3:10 p.m. Using climate models and observations, a fascinating study in this week's issue of Nature Climate Change points to a marked recent warming of the Atlantic Ocean as a powerful shaper of a host of notable changes in climate and ocean patterns in the last couple of decades — including Pacific wind, sea level and ocean patterns, the decade - plus hiatus in global warming and even California's deepening drought.
There is really no evidence that the recent observations of hybrid polar bears, however, have anything to do with global warming.
A recent paper by Graeme L. Stephens, Juilin Li, Martin Wild, Carol Anne Clayson, Norman Loeb, Seiji Kato, Tristan L'Ecuyer, Paul W. Stackhouse Jr, Matthew Lebsock & Timothy Andrews An update on Earth's energy balance in light of the latest global observations, Nature Geoscience, 5, 691 — 696 (2012), which indicates significant adjustments to the energy balance MEASURED data shows how far we are from certainty.
There are many who will not like this recent paper published in Nature Communications on principle as it talks of the hiatus in global temperatures for the past 20 years or so, that the Little Ice Age was global in extent, and that climate models can not account for the observations we already have let alone make adequate predictions about what will happen in the future.
Surface warming / ocean warming: «A reassessment of temperature variations and trends from global reanalyses and monthly surface climatological datasets» «Estimating changes in global temperature since the pre-industrial period» «Possible artifacts of data biases in the recent global surface warming hiatus» «Assessing the impact of satellite - based observations in sea surface temperature trends»
Ocean warming: «Assessing recent warming using instrumentally homogeneous sea surface temperature records» «Tracking ocean heat uptake during the surface warming hiatus» «A review of global ocean temperature observations: Implications for ocean heat content estimates and climate change» «Unabated planetary warming and its ocean structure since 2006»
The recent pause in global warming (1): What do observations of the climate system tell us?
A recent study by Cowtan et al. (paper here) suggests that accounting for these biases between the global temperature record and those taken from climate models reduces the divergence in trend between models and observations since 1975 by over a third.
On balance the evidence shows that solar and oceanic variations are more likely the cause of recent observations of warming in the air than increasing CO2 in the air but the issue can soon be resolved by observing the global air temperature changes that occur during and after the extended cycle 23 and the probable weak cycle 24.
Estimates of future global temperatures based on recent observations must account for the differing characteristics of each important driver of recent climate change.
The observation of a historically high level of TSI from 1961 to 2001 tends to fit with the theories set out in my other articles about the real cause of recent warming and the real link between solar energy, ocean cycles and global temperatures.
Since then there are a number of papers published on why the warming was statistically insignificant including a recent one by Richardson et al. 2016 which tries to explain that the models were projecting a global tas (temperature air surface) but the actual observations are a combination of tas (land) and SST oceans, meaning projected warming shouldn't be as much as projected.
Both the observations of mass balance and the estimates based on temperature changes (Table 11.4) indicate a reduction of mass of glaciers and ice caps in the recent past, giving a contribution to global - average sea level of 0.2 to 0.4 mm / yr over the last hundred years.
«Assessing recent warming using instrumentally homogeneous sea surface temperature records» «Tracking ocean heat uptake during the surface warming hiatus» «A review of global ocean temperature observations: Implications for ocean heat content estimates and climate change» «Unabated planetary warming and its ocean structure since 2006»
9 9 Global mean temperature Global average sea level Northern hemisphere snow cover Observations of recent climate change
«Causes of differences in model and satellite tropospheric warming rates» «Comparing tropospheric warming in climate models and satellite data» «Robust comparison of climate models with observations using blended land air and ocean sea surface temperatures» «Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends» «Reconciling warming trends» «Natural variability, radiative forcing and climate response in the recent hiatus reconciled» «Reconciling controversies about the «global warming hiatus»»
This regional inconsistency between models and observations might be a key to understanding the recent hiatus in global mean temperature warming.
Scientists have high confidence about global temperature trends over recent decades because those observations are based on a massive amount of data.
This point was also made by Schmidt et al. (2014), which additionally showed that incorporating the most recent estimates of aerosol, solar, and greenhouse gas forcings, as well as the El Niño Southern Oscillation (ENSO) and temperature measurement biases, the discrepancy between average GCM global surface warming projections and observations is significantly reduced.
The results open the possibility that recent climate sensitivity estimates from global observations and [intermediate complexity models] are systematically considerably lower or higher than the truth, since they are typically based on the same realization of climate variability.»
Dr. Jana Sillmann et al — IopScience — 18 June 2014 Observed and simulated temperature extremes during the recent warming hiatus «This regional inconsistency between models and observations might be a key to understanding the recent hiatus in global mean temperature warming.»
Tropical Troposphere While recent discussion of the discrepancy between models and observations has focused on global surface temperature, the discrepancy between models and observations was first raised in connection with the tropical troposphere, where the discrepancy is even stronger.
MET 112 Global Climate Change — Lecture 10 Observations of Recent Climate Change Dr. Craig Clements San Jose State University Outline How do we observe?
There is a lack of knowledge of natural GIS variability, and Greenland temperature changes have differed from the global trend (26), so interpretation of recent observations remains uncertain.
Nevertheless, improvements in ice - sheet models over recent decades have led to closer agreement with satellite observations, keeping track with their increasing contribution to global sea - level rise.
Combining observations with information from ECMWF's global forecast model produces a comprehensive, consistent and up - to - date record of the recent climate, unavoidably also carrying a degree of uncertainty.
The new position statement is equivocal, beginning with the observation that «the AAPG membership is divided on the degree of influence that anthropogenic CO2 has on recent and potential global temperature increases», and going on to say «Certain climate simulation models predict that the warming trend will continue, as reported through NAS, AGU, AAAS, and AMS.
Spencer's recent paper (in press) in Journal of Geophysical Research based on CERES observations over the global ocean suggests a 2xCO2 CS well below the IPCC lower limit (90 % certainty) of 1.5 °C, actually closer to 0.6 °C.
Which leads to another observation about natural global warming and climate change: past empirical evidence from earlier in the 20th century confirms that Earth's natural climate oscillations can produce periods of significant temperature change increases that even exceed the most recent temperature climate change.
As to» the truth», researchers have not expressed any evidence based on empiric observations according to which the trend of recent multidecadal global warming could have been controlled by anthropogenic CO2 emissions to atmospere.
Observations of recent global warming, short - term cooling after major volcanic eruptions, cooling at the Last Glacial Maximum and other periods in the historical record, and the seasonal variation in climate, all provide some information which helps to determine the value of climate sensitivity.
More recent documentation (Hansen et al. 2010) compares alternative analyses and addresses questions about perception and reality of global warming; various choices for the ocean data are tested; it is also shown that global temperature change is sensitive to estimated temperature change in polar regions, where observations are limited.
For example, while all of the global climate models participating in the most recent Intergovernmental Panel on Climate Change report show a decline in Arctic sea ice over the period of available observations, none of them match the severity of the trends we actually observe.
Among its observations: Global volatility and uncertainty will affect whether foreign capital continues to flow into U.S. commercial investment as has been the trend in recent years.