Sentences with phrase «little ice age climate»

In: Proceedings, International Symposium on the Little Ice Age Climate.

The thing I find a bit curious about the result that is the subject of this blog article, though, is the statement that the model used reproduces the Little Ice Age climate simply as a response to the luminosity reduction.

Not exact matches

To the surprise of everyone who knew about the strong evidence for the little ice age and the medieval climate optimum, the graph showed a nearly constant temperature from the year 1000 until about 150 years ago, when the temperature began to rise abruptly like the blade of a hockey stick.

Frankly, if I wanted to worry about climate change, I would worry about global cooling again, since the sun is behaving very weakly just now, and sun - watching scientists have even dared to suggest that a reprise of the Little Ice Age is in the offing.

They also analyzed data from a climate model developed by the Max - Planck Institute for Meteorology in Germany to predict what the correlation between the current and rainfall would be expected to be during the Little Ice Age.

«It seems that the sun's quiescence was responsible for the most extreme phases of the Little Ice Age, implying that solar variability sometimes plays a significant role in climate change.

A team of UK researchers has shed new light on the climate of the Little Ice Age, and rekindled debate over the role of the sun in climate change.

«It would produce a climate change unknown in recorded history — colder than the little ice age,» Robock says, referring to the period between the 14th and 19th centuries when a 1.5 °F drop below today's temperatures caused crop failures, famines, and political unrest in northern Europe.

They said that two extreme climate periods — the Medieval Warming Period between 800 and 1300 and the Little Ice Age of 1300 to 1900 — occurred worldwide, at a time before industrial emissions of greenhouse gases became abundant.

Since then, there have been small - scale climate shifts — notably the «Little Ice Age» between about 1200 and 1700 A.D. — but in general, the Holocene has been a relatively warm period in between ice agIce Age» between about 1200 and 1700 A.D. — but in general, the Holocene has been a relatively warm period in between ice agice ages.

Villalba (1994) «Tree Ring and Glacial Evidence for the Medieval Warm Epoch and the Little Ice Age in Southern South America» Climate Change 26, 183 - 197.

See the RealClimate discussions of the Little Ice Age and Medieval Warm Period for explanations of why both the Viking colonization of Greenland and the freezing of the River Thames actually tells us relatively little about past climate cLittle Ice Age and Medieval Warm Period for explanations of why both the Viking colonization of Greenland and the freezing of the River Thames actually tells us relatively little about past climate clittle about past climate change.

«The climate reconstructions for the past 2,000 years have led to a simplistic picture of a Medieval Warm Period and a Little Ice Age.

Indeed, the main quandary faced by climate scientists is how to estimate climate sensitivity from the Little Ice Age or Medieval Warm Period, at all, given the relative small forcings over the past 1000 years, and the substantial uncertainties in both the forcings and the temperature changes.

Many other factors influence regional climate variations such as the Little Ice Age, the Medieval Warm Period, and the Younger Dryas climate excursion.

In the same report, Hayward also supports the idea that current climate change is caused by Earth recovering from the Little Ice Age.

The Little Ice Age was not a true glacial period, but describes colder climates around the world.

The assessment examines the following content; global warming, the greenhouse effect / gases, natural and human causes of past climate change, evidence of the little ice age, features of tropical storms and the effects and response to tropical storms.

Because they feed in Arctic and subarctic benthic environments, gray whales are thought to be relatively sensitive to changes in climate, and climatic events such as the Medieval Warm Period (ca. 900 — 1200 AD) or Little Ice Age (ca. 1300 — 1850 AD) could have caused a population decline.

This talk by Cleveland Art Museum Assistant Curator of Korean Art Sooa Im McCormick explores how climate changes during the Little Ice Age prompted eighteenth - century Korean rulers to exercise the politics of frugality, and eventually shaped eighteenth - century Korean visual culture and its distinctive aesthetics.

Re 113 Harold Pierce Jr: «The trend is just a possible reflection of the climate recovering from the Little Ice Age.

Sci., 105, 13252 - 13257, 2008 Mann, M.E., Zhang, Z., Rutherford, S., Bradley, R.S., Hughes, M.K., Shindell, D., Ammann, C., Faluvegi, G., Ni, F., Global Signatures and Dynamical Origins of the Little Ice Age and Medieval Climate Anomaly, Science, 326, 1256 - 1260, 2009

It is a fact of life for attribution studies that the climate changes associated with the end of the Little Ice Age overlap with the beginning of the era of industrial warming.

I like this little dig at the denier - sceptic - contrarians who appear to be tree ring obsessed: «It is intriguing to note that the removal of tree - ring data from the proxy dataset yields less, rather than greater, peak cooling during the 16th — 19th centuries for both CPS and EIV methods... contradicting the claim... that tree - ring data are prone to yielding a warm - biased «Little Ice Age» relative to reconstructions using other high - resolution climate proxy indicators.&little dig at the denier - sceptic - contrarians who appear to be tree ring obsessed: «It is intriguing to note that the removal of tree - ring data from the proxy dataset yields less, rather than greater, peak cooling during the 16th — 19th centuries for both CPS and EIV methods... contradicting the claim... that tree - ring data are prone to yielding a warm - biased «Little Ice Age» relative to reconstructions using other high - resolution climate proxy indicators.&Little Ice Age» relative to reconstructions using other high - resolution climate proxy indicators.»

(Isotopic analysis of the oxygen in tooth enamel has also been used to study climate swings, including the onset of the Little Ice Age).

The so - called «Little Ice Age» was a cooling of the Northern Hemisphere climate (and possibly less markedly in the Southern Hemisphere) in the period of the fourteenth century to the the 1850's, approximately.

[Response: One of the classic fallacies advanced by climate change contrarians involves the notion of a «recovery from the Little Ice Age (LIA)» or some variant on this theme.

Based on the comparison between reconstructions and simulations, there is high confidence that not only external orbital, solar and volcanic forcing, but also internal variability, contributed substantially to the spatial pattern and timing of surface temperature changes between the Medieval Climate Anomaly and the Little Ice Age (1450 to 1850).

Mike's work, like that of previous award winners, is diverse, and includes pioneering and highly cited work in time series analysis (an elegant use of Thomson's multitaper spectral analysis approach to detect spatiotemporal oscillations in the climate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureClimate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measureclimate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measurements).

Many other factors influence regional climate variations such as the Little Ice Age, the Medieval Warm Period, and the Younger Dryas climate excursion.

Having read the comments here and in Jones and Mann (2004) «Climate over past millennia», I have been reflecting on some of the comments about the hockey stick wrt the Medieval Warm Period (MWP) and the Little Ice Age (LIA).

That's the change in the rate of change — very little change for many tens of thousands of years, then rapid change in the ecology as the climate changed naturally since the end of the last ice age.

The paper also finds that several significant past climate fluctuations — including a warm spell that peaked around 1100 A.D. called the medieval warm period and the so - called little ice age from the 1400s through the 1700s — were global in scope.

See e.g. this review paper (Schmidt et al, 2004), where the response of a climate model to estimated past changes in natural forcing due to solar irradiance variations and explosive volcanic eruptions, is shown to match the spatial pattern of reconstructed temperature changes during the «Little Ice Age» (which includes enhanced cooling in certain regions such as Europe).

Indeed, the main quandary faced by climate scientists is how to estimate climate sensitivity from the Little Ice Age or Medieval Warm Period, at all, given the relative small forcings over the past 1000 years, and the substantial uncertainties in both the forcings and the temperature changes.

Cochelin et al used a model of intermediate complexity to show that the orbital variations over the next 100,000 years are weak enough that even a little human CO2 remaining in the atmosphere is enough to keep the earth out of an ice age («Simulation of long - term future climate changes with the green McGill paleoclimate model: The next glacial inception»).

The little ice age is described as a time not of radically colder temperatures than today, but periodic, large climate swings and storms, contrasting with the stability of medieval times.

If, for example, scientists had somehow underestimated the climate change between Medieval times and the Little Ice Age, or other natural climate changes, without corresponding errors in the estimated size of the causes of the changes, that would suggest stronger amplifying feedbacks and larger future warming from rising greenhouse gases than originally estimated.

Mann M.E., Zhang Z., Rutherford S., Bradley R.S., Hughes M.K., Shindell D., Ammann C., Faluvegi G., and Ni F. (2009) Global Signatures and Dynamical Origins of the Little Ice Age and Medieval Climate Anomaly, Science, 326, 1256 - 1260.

I suspect that it looked OK in your view or you didn't check; «the paper i cited 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.

There is no empirical evidence to support assertions and computer models that claim carbon dioxide drives climate change or to suggest that greenhouse gases have supplanted the complex natural forces that have produced big and little ice ages, floods and droughts, and stormy and quiescent periods throughout Earth's history.

Let me just quote Jones and Mann: «««Medieval Warm Period» and «Little Ice Age» are therefore restrictive terms, and their continued use in a more general context is increasingly likely to hamper, rather than aid, the description of past large - scale climate changes.

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.

The Little Ice age thermometers collected on my site demonstrates the Earths amazing climate variability, captured all the way back to 1660 by instrumental records.

For the IPCC both the MWP (Medieval Warm Period) and the LIA (Little Ice Age) existed before the «hockey stick,» so viewing the situation objectively — after the IPCC participated in the rewriting of history by showcasing the «hockey stick as a part of the Left's efforts to manufacture a supposed consensus about climate change — the IPCC condoned a fraud that federal climatists to this very day persist in perpetrating on the public.

For example — you said — How about the period between the medieval warm period and the little ice age for a period that the climate was stable?

Earth and Planetary Science Letters Volumes 325 — 326, 1 April 2012, Pages 108 — 115 An ikaite record of late Holocene climate at the Antarctic Peninsula This ikaite record qualitatively supports that both the Medieval Warm Period and Little Ice Age extended to the Antarctic Peninsula.

How about the period between the medieval warm period and the little ice age for a period that the climate was stable?

«The climate has been warming since the 1700s, okay, since the end of the «Little Ice Age,»» Curry explained.

Like Greenland and the Little Ice Age, glaciers aren't cooperating with climate alarmists either, though glacier retreat is supposedly a harbinger of doom for our warming planet.