Sentences with phrase «current ice age climate»

Our current ice age climate started 3 + million years ago when the ismus between Central & South America closed, changing ocean currents and allowing the poles to become ice covered.

Not exact matches

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.

The study, by an international team of scientists led by the University of Cambridge, examined how changes in ocean currents in the Atlantic Ocean were related to climate conditions in the northern hemisphere during the last ice age, by examining data from ice cores and fossilised plankton shells.

Ice core records are rich archives of the climate history during glacial - interglacial cycles over timescales of up to ~ 800 kyr before the current age.

But in a new study in Nature, researchers show that the deep Arctic Ocean has been churning briskly for the last 35,000 years, through the chill of the last ice age and warmth of modern times, suggesting that at least one arm of the system of global ocean currents that move heat around the planet has behaved similarly under vastly different climates.

This provides us with a major new theory on the origins of the ice age, and ultimately our current climate system.»

In geological time, the balance of the system has changed several times, and just like any system can have a resonance at certain points, the climate can reach a resonant point where it is teetering between two states (our current 100,000 year ice age warm period cycle).

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

Qualms about arbitrariness in computer models diminish as teams model ice - age climate and dispense with special adjustments to reproduce current climate.

In geological time, the balance of the system has changed several times, and just like any system can have a resonance at certain points, the climate can reach a resonant point where it is teetering between two states (our current 100,000 year ice age warm period cycle).

As Professor Barry Brook, Adelaide University said a couple of months after your proclamation about the up - coming ice - age QUOTE: There are a lot of uncertainties in science, and it is indeed likely that the current consensus on some points of climate science is wrong, or at least sufficiently uncertain that we don't know anything much useful about processes or drivers» (http://bravenewclimate.com/2009/04/23/ian-plimer-heaven-and-earth/).

Your incorrect claim that the current climate change «is unprecedented perhaps over the past 100,000 years» is incorrect, because it ignores that huge, incredibly rapid change at the end of the ice age, which was survived by all of the species that we know and love.

The huge meltwater pulses 16,000 - 8000 years ago coming out of an ice age are asymptomatic of current climate.

Archer leads the reader to a simple yet accurate picture of climate changes, ranging from geological time scales to current warming, ice ages and prospects for the future.

I deal with the spin on a daily basis, while personally I have made my own investigations into what people refer to as climate science and compare it to other, less politicized scientific inquiries into paloeoceanography, paleogeology, paleoclimatology, and of course the science related to our current ice age and what pulls us into periods of glaciation and what impacts trigger interglatial warming periods.

Conversely, during low solar activity during the Little Ice Age, transport of warm water was reduced by 10 % and Arctic sea ice increased.17 Although it is not a situation I would ever hope for, if history repeats itself, then natural climate dynamics of the past suggest, the current drop in the sun's output will produce a similar cooler climate, and it will likely be detected first as a slow down in the poleward transport of ocean heat.22 Should we prepare for this possibiliIce Age, transport of warm water was reduced by 10 % and Arctic sea ice increased.17 Although it is not a situation I would ever hope for, if history repeats itself, then natural climate dynamics of the past suggest, the current drop in the sun's output will produce a similar cooler climate, and it will likely be detected first as a slow down in the poleward transport of ocean heat.22 Should we prepare for this possibiliice increased.17 Although it is not a situation I would ever hope for, if history repeats itself, then natural climate dynamics of the past suggest, the current drop in the sun's output will produce a similar cooler climate, and it will likely be detected first as a slow down in the poleward transport of ocean heat.22 Should we prepare for this possibility?

The current emphasis is on «climate change» which should more accurately be called AGF, (and CAGF) ie `... Flat - lining», a very scary prospect, not: though a change to ice age conditions could give us all a nasty surprise.

``... the moisture budget and its role in global change, the origins of ice ages, seasonal effects in atmospheric transport, stratospheric waves, and the observational determination of climate sensitivity -LSB-...] the development of the current theory for the Hadley Circulation, -LSB-...] the quasi-biennial oscillation of the tropical stratosphere.

The ocean current that gives western Europe its relatively balmy climate is stuttering, raising fears that it might fail entirely and plunge the continent into a mini ice age.

Some climate models predict that the increased rainfall may weaken, or perhaps even stop, the Atlantic currents that carry warm water northward from the tropics and may plunge Europe into a new ice age.

In no way can my summary of the research regarding the impact of regional climate change on the Viking civilization and Europe during the Little Ice Age be used to «prove» the current global warming is due to a natural cycle.»

Deng et al., 2017 [DOI: 10.1002 / 2016JC012458] «The [Medieval Climate Anomaly] and [Little Ice Age] are climate anomalies that were caused by natural forcing (e.g., solar variability and volcanic emissions), but the [Current Warm Period] is linked to anthropogenic factors (e.g., industrialization and land - use changes)Climate Anomaly] and [Little Ice Age] are climate anomalies that were caused by natural forcing (e.g., solar variability and volcanic emissions), but the [Current Warm Period] is linked to anthropogenic factors (e.g., industrialization and land - use changes)climate anomalies that were caused by natural forcing (e.g., solar variability and volcanic emissions), but the [Current Warm Period] is linked to anthropogenic factors (e.g., industrialization and land - use changes)»

Current GCM models may have realistic - seeming weather patterns, but are totally incapable of producing phenomena that look like the Holocene (Little Ice Age, Medieval Warm Period, Roman Warm Period, Holocene Optimum, the steady decline of temperature on average over the last 3,000 years, etc.) The Climate Science community has, instead, taken the path of trying to claim that these swings didn't occur (Michael Mann's «Hockey Stick», etc.) This does not give me a lot of confidence in the rest of their «science».

González - Rouco et al (2011), Medieval Climate Anomaly To Little Ice Age Transition As Simulated By Current Climate Models.

On the Guardian's forums, you'll find endless claims that the hockey stick graph of global temperatures has been debunked; that sunspots are largely responsible for current temperature changes; that the world's glaciers are advancing; that global warming theory depends entirely on computer models; that most climate scientists in the 1970s were predicting a new ice age.

Over the past 450,000 years there have been several major glacial / interglacial (ice age / current climate) cycles.

The difference between the warming at the end of the last ice age (left side of the graph) and the current warming (right side of the graph) demonstrates how truly abnormal the current change in climate really is.

Although scientists dismissed how the filmmakers employed climate science (in the film the world enters an implausible new Ice Age), a slowdown in the current is certainly a theoretical possibility in the future.

Thus there is a back and forth in global cloudiness as the Sun's activity level changes over the decades and centuries — such as during the period covering the Medieval Warm Period, the Little Ice Age, and the current warm period — through latitudinal shifting of the jet stream tracks and permanent climate zones.

Due to the way in which these various cycles have been relative constant over the last 35 million years, the earth has settled into a relatively recent cycle of approximately 100,000 year long declining climates and ice ages, and brief 12,000 - 18,000 year long warm spells we call inter-glacial periods like our current Holocene.

On the Guardian's forums, you'll find endless claims that thehockeystick graph of global temperatures has been debunked; that sunspots are largely responsible for current temperature changes; that the world's glaciers are advancing; that global warming theory depends entirely on computer models; that most climate scientists in the 1970s were predicting a new ice age.

Less dramatic cycles (the Holocene climate optimum, the little ice age, and the current warming) have affected humanity within our interglacial period.

Well - documented climate changes during the history of Earth, especially the changes between the last major ice age (20,000 years ago) and the current warm period, imply that the climate sensitivity is near the 3 °C value.

If you can't establish what the range of just the average global temperature is for the current climate optimum (since the last ice age), how can you begin to establish what the null hypothesis is, particularly as it relates to attribution of natural vs. anthroprogenic.

For example, natural climate change like ice ages is irrelevant to the current warming.

Similarly, Demezhko and Gornostaeva (2015) found that the heat energy change in the deep oceans during the climate transition from the last ice age to this current interglacial occurred «2 - 3 thousands of years» before the increases in surface temperature and CO2, and that «the increase of carbon dioxide may be a consequence [rather than a cause] of temperature increasing».