Sentences with phrase «models of our climate history»

One study, from researchers at the GKSS Research Center in Geesthacht, Germany, confirmed «a glitch» in Dr. Mann's work but «found this glitch to be of very minor significance» when applied to some computer - generated models of climate history, according to a statement released by lead author Hans von Storch.

Not exact matches

While tomatoes have been regularly used as a model organism to study the effect of climate in fruit ripening, its commercial history is a chequered one.

Lead author William Taylor, a postdoctoral research fellow at the Max Planck Institute for the Science of Human History, says that this model «enables us for the first time to link horse use with other important cultural developments in ancient Mongolia and eastern Eurasia, and evaluate the role of climate and environmental change in the local origins of horse riding.»

To inform its Earth system models, the climate modeling community has a long history of using integrated assessment models — frameworks for describing humanity's impact on Earth, including the source of global greenhouse gases, land use and land cover change, and other resource - related drivers of anthropogenic climate change.

«The new work improves our understanding of history, allowing better model tests and allowing better assessment of how the ice responded to climate changes in the past,» Alley said, «and this will help in making better and more - reliable projections for the future.»

Venus may have had a shallow liquid - water ocean and habitable surface temperatures for up to 2 billion years of its early history, according to computer modeling of the planet's ancient climate by scientists at NASA's Goddard Institute for Space Studies (GISS) in New York.

According to models of Mars» climate history, ice now trapped mainly at the planet's poles often migrated into the mid-latitude regions where Lyot is located.

It is a mixture of climate modelling but also uses genetics to understand population history, as well.

Abstract: Models investigating the effects of climate change and human - led land - use change on biodiversity have arrived at alarming conclusions, with the worst case scenarios suggesting extinction rates at such a level as to constitute a sixth mass extinction event in the earth's history.

A global warming target is converted to a fossil fuel emissions target with the help of global climate - carbon - cycle models, which reveal that eventual warming depends on cumulative carbon emissions, not on the temporal history of emissions [12].

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One can temper that with studies of paleoclimate sensitivity, but the ensemble results still should be borne in mind, since doubling CO2 takes us into a climate that has no real precendent in the part of the climate record which has been used for exploring model sensitivity, and in many regards may not have any real precedent in the entire history of the planet (in terms of initial condition and rapidity of GHG increase).

The «renowned professor of physics and expert on spectroscopy Dr. Hermann Harde,» as he is described on the planet Wattsupia, has quite a history of modelling the GHG effect on climate.

Through paleo - climate simulations for the last millennium with climate models, a number of alternate forcing histories for volcanic and solar changes have been proposed to see their effect on past climate variations.

They show this with an elegant experiment, in which they «force» their global climate model to follow the observed history of sea surface temperatures in the eastern tropical Pacific.

Understanding past climate changes are of course also very interesting — they provide test cases for climate models and can have profound implications for the history of human society.

It details the history of Climate Science, but it doesn't restrict itself to pure science — it also looks at how the public has responded to reports in the press, how the Government has reacted, and includes models of climate Climate Science, but it doesn't restrict itself to pure science — it also looks at how the public has responded to reports in the press, how the Government has reacted, and includes models of climate climate change.

Study of Earth's climate extremes through history — when climate was extremely cold or hot or changed quickly — may lead to improved climate models that could enable scientists to predict the magnitude and consequences of climate change.

The paper uses evidence and modeling to explain how the sun - blocking impact from a 50 - year stretch of unusually intense eruptions of four tropical volcanoes caused sufficient cooling to produce a long - lasting shift in the generation and migration of Arctic Ocean sea ice, with substantial consequences for the Northern Hemisphere climate that lasted centuries and left a deep imprint on European history.

«Based on climate model studies and the history of the Earth the authors conclude that additional global warming of about 1 °C (1.8 °F) or more, above global temperature in 2000, is likely to be dangerous.»

In fact, climate models are tested against historic trends, both near history and distant history, and then tested against specific events, such as the effects of volcanic eruption.

A stern lesson from history Wyatt / Curry stadium waves require confirmation from analysis and computation; otherwise they risk being regarded as one more statistics - driven model, of which the climate literature already contains innumerably many... this large corpus of cycle - seeking pure - statistics climate models is (rightly) ignored by most scientists, due to the dismal track record of cycle - seeking science in regard to explanatory and predictive power.

Only recently, have some climate scientists started to study particular events in terms of history, statistics and modeling.

Here we show that accounting for recent cooling in the eastern equatorial Pacific reconciles climate simulations and observations.We present a novel method of uncovering mechanisms for global temperature change by prescribing, in addition to radiative forcing, the observed history of sea surface temperature over the central to eastern tropical Pacific in a climate model.

Overall, climate models have been fairly successful at simulating the history of surface temperature warming (both in warming rate and geographical details).

So even though 2 million years of climate history illustrated bearded seals are highly resilient, the court was swayed by a limited selection of models and untestable predictions.

«This is the first time in the history of mankind that we are setting ourselves the task of intentionally, within a defined period of time, to change the economic development model that has been reigning for at least 150 years, since the Industrial Revolution,» Christina Figueres, Executive Secretary, UN's Framework Convention on Climate Change.

One thing claimed is that the long run projections of the climate model runs can't be trusted because the ensemble does not do that great a job of predicting today from recent history of observations.

To demonstrate that millions will starve: take projections of extremes from broken climate models, and put them in wheat crop models, and then assume we take no adaptive measures for the first time in human history.

Don't infer the snow accumulation history from NOAA's climate change models, because that history doesn't correlate with NOAA's own published data on timing of snow accumulation rates near the poles.

As Andy explained the task of time accurate modeling is to reach right statistical properties of climate, not right weather forecasts or history paths.

As IO have extensively proven in my papers and by proponent of the AGW (see for example Crowley, Science 2000), the traditional climate models produce a signature quite similar to the hockey stick graph by Mann which not only simply disagree with history but has also been seriously put in question under several studies.

Their argument is updated models of the history of the milky way dramatically change the picture of when spiral arms existed and that the correlation with climate data disappears.

Why isn't a TCR type of simulation, but instead using actual history and 200 year projected GHG levels in the atmosphere, that would produce results similar to a TCR simulation (at least for the AGW temp increase that would occur when the CO2 level is doubled) and would result in much less uncertainty than ECS (as assessed by climate model dispersions), a more appropriate metric for a 300 year forecast, since it takes the climate more than 1000 years to equilibrate to the hypothesized ECS value, and we have only uncertain methods to check the computed ECS value with actual physical data?

But that's not uncommon when overlaying so much data, and frankly the TAR / SAR / FAR models and projections, while interesting as historical documents, are far from state of the art in resolution, in incorporated components of the climate, and perhaps most importantly in the more recent forcing histories.

BHI has a history of producing biased reports that use a flawed economic model to attack clean energy and climate change policies.

NASA's Goddard Institute for Space Studies (GISS) has a long history in climate studies, which led to the development of one of the most accurate and complete models of Earth's global climate, the General Circulation Model (GCM).

Much of their seminal research has been exposed as academic fraud, based on cute little games like ignoring large periods of history that don't conform to their man - made climate change models, fudging temperature measurements, and changing the methodology for recording and estimating global temperatures at during different historical periods.

That judgement has nothing to do with science — scientists are still struggling to model the climate, let alone the future course of human history.

They also include models for things like: entry into and exit from Ice Ages, the effect of the Earth's orbit on climate, the earth's climate history on scales of thousands to millions of years, ocean - atmosphere couplings (e.g. heat transfer, CO2 sinks), decadal phenomena such as ENSO and the PDO.

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I have no doubt that the models the climate scientists use today are the «most accurate» ever in the history of humankind.

«This is the first time in the history of mankind that we are setting ourselves the task of intentionally, within a defined period of time to change the economic development model that has been reigning for at least 150 years, since the industrial revolution,» Figueres asserted, at a February 3rd press conference during the Geneva climate talks.

In particular, they have spent the last year or two bragging that their climate models must be right because they do such a good job of predicting history.

We have used both climate models and geological records of past climates to better understand lessons from warmer periods in the Earth's history and investigate future scenarios.

Regarding TimTheToolMan's prediction as to how the IPCC and the climate science community will deal with the issue, the more one thinks about the IPCC's dilemma, the more one should believe that this is just what they will do, they will tune AR5's modeling in ways which get a better recent fit, sacrificing some historical fit to do so, and then they will produce a series of new papers which rewrite the history of ocean heat content to match.

The researchers used data on earlier warm periods in Earth's history to estimate climate impacts as a function of global temperature, climate models to simulate global warming, and satellite data to verify ongoing changes.

Based on climate model studies and the history of the Earth, the Hansen and Sato conclude that additional global warming of about 1ºC (1.8 ºF) or more, above global temperature in 2000, is likely to be dangerous.