Karl, T., Vinnikov, K., and Bradley, R.S., 1990:
Recent global climate trends.
Their research shows that during the past 32 years there have been widespread increases in both plant growth and evaporation due to
recent global climate trends.
Not exact matches
The findings show a slight but notable increase in that average temperature, putting a dent in the idea that
global warming has slowed over the past 15 years, a
trend highlighted in the most
recent Intergovernmental Panel on
Climate Change report.
-LSB-...] correlated with the solar cycle) has any significant impact on
recent trends in
global climate, see here and here and here.
«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.
It is estimated, for example, that none of the [Millennium Development Goals] targets will be met in sub-Saharan Africa if current
trends continue, and this is before account is taken of the real effects of the
recent crises in food and energy, the rapid increase in impacts of
climate change, and the major implications of a
global economic slowdown.»
To set the
recent trend in broader context, check out sociologist Robert Brulle's graph tracking network news coverage of
global warming and the following graph of newspaper coverage of
climate change from 1980 to 2006 (a separate newspaper sample) from Dr. Boykoff's recent paper in Nature Reports — Climate
climate change from 1980 to 2006 (a separate newspaper sample) from Dr. Boykoff's
recent paper in Nature Reports —
Climate Climate Change:
The oceans may be warming and air temperatures rising, but in
recent days Iceland has bucked the
global climate trend.
While the anomalous nature of
recent trends in
global average temperature is often highlighted in discussions of
climate change, changes at regional scales have potentially greater societal significance.
Ellsaesser on
global warming: «Natural variability in the Earth's
climate easily exceeds
recent global temperature
trends.»
Ignoring a well - documented history of natural
climate change, ignoring the ill - advised 20th century policy of fire suppression, and ignoring the increased percentage (~ 80 to 90 %) of fires ignited by humans, Climate Central tried to persuade the public that California fires, (as well as all recent fires) are «part of a dire global warming - fueled trend toward larger, more frequent and intense wildfires.
climate change, ignoring the ill - advised 20th century policy of fire suppression, and ignoring the increased percentage (~ 80 to 90 %) of fires ignited by humans,
Climate Central tried to persuade the public that California fires, (as well as all recent fires) are «part of a dire global warming - fueled trend toward larger, more frequent and intense wildfires.
Climate Central tried to persuade the public that California fires, (as well as all
recent fires) are «part of a dire
global warming - fueled
trend toward larger, more frequent and intense wildfires.»
At the very least, proponents of continuing
global warming and
climate change would perhaps be wise not to make the
recent warming
trend in recorded temperatures a central plank in their argument.»
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.
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.
... incomplete and misleading because it 1) omits any mention of several of the most important aspects of the potential relationships between hurricanes and
global warming, including rainfall, sea level, and storm surge; 2) leaves the impression that there is no significant connection between
recent climate change caused by human activities and hurricane characteristics and impacts; and 3) does not take full account of the significance of recently identified
trends and variations in tropical storms in causing impacts as compared to increasing societal vulnerability.
To date, while various effects and feedbacks constrain the certainty placed on
recent and projected
climate change (EG, albedo change, the response of water vapour, various future emissions scenarios etc), it is virtually certain that CO2 increases from human industry have reversed and will continue to reverse the downward
trend in
global temperatures that should be expected in the current phase of the Milankovitch cycle.
Now, adding to this miserably low warming influence of CO2 is the
recent admission by establishment
climate science that natural climatic forces have a powerful say in the
trend of
global temperatures, regardless of human CO2 emissions.
Proxy - based reconstructions of past
climate provide insights into externally forced and intrinsic variability over regional to
global scales and can be used to place
recent trends in a long - term context.
«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»»
The Intergovernmental Panel on
Climate Change reported in its most
recent scientific assessment that «[n] o robust
trends in annual numbers of tropical storms, hurricanes, and major hurricanes... have been identified over the past 100 years in the North Atlantic basin,» and that there are «no significant observed
trends in
global tropical cyclone frequency.»
The discrepancy between
recent observed and simulated
trends in
global mean surface temperature has provoked a debate about possible causes and implications for future
climate change projections.
The simulations also produce an average increase of 2.0 °C in twenty - first century
global temperature, demonstrating that
recent observational
trends are not sufficient to discount predictions of substantial
climate change and its significant and widespread impacts.
Scientists now believe it's «extremely likely» that human activity is the dominant cause of
global warming, a long - term
trend that is clear despite a
recent plateau in the temperatures, an international
climate panel said...
Scientists now believe it's «extremely likely» that human activity is the dominant cause of
global warming, a long - term
trend that is clear despite a
recent plateau in the temperatures, an international
climate panel said Friday.
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.»
For those wanting a closer look at the more
recent wiggles and
trends, the second graph starts in 1998, which was the start year used by von Storch et al (2013) Can
climate models explain the
recent stagnation in
global warming?
We often hear the claim that the science of
climate change is settled, that there is general agreement that humans have been causing most of the
recent warming
trend, and that it will all end in
global disaster unless we «do something about it».
For «observed increase in
global temperature» I'll assume the linear least - squares regression
trend through the most
recent version of the
global temperature dataset compiled jointly by the U.K.'s Hadley Center and
Climate Research Unit (dataset HadCRUT3).
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.
That conclusion is based not on
climate models or recent trends in forest fires, but rather on records of forest fires that occurred more than a millennium ago, during the Medieval Climate Anomaly, a period when global temperatures were comparable to what they are today, and about half a degree warmer (on the Celsius scale) than they had been for several centuries
climate models or
recent trends in forest fires, but rather on records of forest fires that occurred more than a millennium ago, during the Medieval
Climate Anomaly, a period when global temperatures were comparable to what they are today, and about half a degree warmer (on the Celsius scale) than they had been for several centuries
Climate Anomaly, a period when
global temperatures were comparable to what they are today, and about half a degree warmer (on the Celsius scale) than they had been for several centuries prior.
* «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.»
Using computer
climate models, climatologists have established that the
recent trend of an increasing
global average air temperature, especially since the mid-20 th century, is unprecedented and unnatural.
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 o
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 o
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.
The Application of Size - Robust
Trend Statistics to
Global - Warming Temperature Series Thomas B. Fomby and Timothy J. Vogelsang Journal of Climate 2002; 15: 117 - 123 http://journals.ametsoc.org/doi/abs/10.1175/1520-0442%282002%29015%3C0117%3ATAOSRT%3E2.0.CO%3B2... recent studies have pointed out that strong serial correlation (or a unit root) in global temperature data could, in theory, generate spurious evidence of a significant positive trend... A serial - correlation — robust trend test recently was proposed that controls for the possibility of spurious evidence due to strong serial correlati
Global - Warming Temperature Series Thomas B. Fomby and Timothy J. Vogelsang Journal of
Climate 2002; 15: 117 - 123 http://journals.ametsoc.org/doi/abs/10.1175/1520-0442%282002%29015%3C0117%3ATAOSRT%3E2.0.CO%3B2...
recent studies have pointed out that strong serial correlation (or a unit root) in
global temperature data could, in theory, generate spurious evidence of a significant positive trend... A serial - correlation — robust trend test recently was proposed that controls for the possibility of spurious evidence due to strong serial correlati
global temperature data could, in theory, generate spurious evidence of a significant positive
trend... A serial - correlation — robust
trend test recently was proposed that controls for the possibility of spurious evidence due to strong serial correlation....