Sentences with phrase «climate in a feedback loop»

The increasing loss of Arctic sea ice is threatening polar bears across their range; melting sea ice is affecting the Arctic climate in a feedback loop; and scientists expect melting permafrost will release more carbon dioxide and methane.

Not exact matches

Vegetation change underway in boreal forests as a result of climate change creates a feedback loop that prompts more warming, scientists say

A new study says that climate - induced feedback loops could lead to a change in ocean stratification and the more rapid melting of ice sheets.

As summarized by geoscientist James Kasting in his 2010 book «How to Find a Habitable Planet»,» [h] abitable zones around Sun - like (F, G, and Early K) stars should be relatively wide because of the natural feedback between atmospheric CO2 [carbon dioxide] levels and climate — the same feedback loop that kept the Earth habitable early its history.

The margin of error in various «forcings» and feedback loop strengths is so big that there is a reasonable probability that global climate will cool in the next decade.

If you think all forcings involve feedbacks, please explain how changes in the radition emitted by the sun are part of a feedback loop and driven somehow by climate change on remote and microscopically small planet earth?

It is the tipping point problem that many climate scientists warn about... where the natural feedback loops that we have seen in the past take over and we lose the chance to stop it.

This team is the first to account for large scale insect outbreaks in an analysis of forest carbon balances - and to show the positive feedback loop between climate change and warmth loving insect pests.

Mike Roddy has referred to many times before in here; the feedback loops, I've read terms like «Committed Warming» referring to the fact that no matter what we try to do or not do to mitigate climate change, it is still predicted to get considerably warmer for at least the next 100 years.

In other words, it feels to me like there's some sort of distorted feedback loop, wherein candidates don't raise environmental issues because they think they may be controversial and divisive (though, as McCain or my dad's generation of Republicans show, the planet obviously crosses party lines), and the public doesn't raise climate issues enough because it apparently isn't on the political menu, like religion at dinner parties, but that doesn't mean we don't believe (in climate change or the need for our changeIn other words, it feels to me like there's some sort of distorted feedback loop, wherein candidates don't raise environmental issues because they think they may be controversial and divisive (though, as McCain or my dad's generation of Republicans show, the planet obviously crosses party lines), and the public doesn't raise climate issues enough because it apparently isn't on the political menu, like religion at dinner parties, but that doesn't mean we don't believe (in climate change or the need for our changein climate change or the need for our change).

There are positive feedback loops in the real climate system that are not modeled in the current version of C - ROADS.

Such a feedback loop could result in accelerated warming throughout the globe, which will strongly impact ongoing climate change mitigation and adaptation efforts.

In short, whatever the initial climate sensitivity is to a doubling of CO2, I just can't buy off on this positive feedback loop idea that says that temperatures are going to spin out of control once we pass over some «tipping point» that only seems to exists in some scientist's theoretical modeIn short, whatever the initial climate sensitivity is to a doubling of CO2, I just can't buy off on this positive feedback loop idea that says that temperatures are going to spin out of control once we pass over some «tipping point» that only seems to exists in some scientist's theoretical modein some scientist's theoretical model.

As a result, the government has had to import more diesel, borrowing about $ 30 million this year alone to make up for the electricity shortfall, hurting its budget and increasing climate - warming emissions in a catastrophic feedback loop.

Hansen and others spit out a lot of loose language about there being positive feedback loops in the climate system.

James Lovelock, of Gaia Hypothesis fame, says it's too late, the game's up, the climate is already in a feedback loop - «and before this century is over billions of us will die and the few breeding pairs of people that survive will be in the Arctic where the climate remains tolerable.»

But the biggest problem by far with climate change is that there exists some positive feedback loops in nature:

The closed - loop feedback gain implicit in the IPCC's climate - sensitivity interval 3.3 [2.0, 4.5] Cº per CO2 doubling falls on the interval 0.62 [0.42, 0.74].

This powerful feedback loop was recognised in the 19th century by Croll (1890) and was first introduced in climate models by Budyko (1969) and Sellers (1969).

Scientists are aware of a number of positive feedbacks loops in the climate system.

At a recent debate at Oxford University, organized by the OU Engineering Society, I gave the undergraduates an argument from process engineering (which you will find in outline in my Union College presentation, and in more detail in my Hartford College lecture) to the effect that the closed - loop temperature - feedback gain in the climate system (i.e., the product of the Planck parameter and the net sum of all unamplified feedbacks) can not much exceed 0.1, implying at most 1.3 K of warming per CO2 doubling, compared with the IPCC's central estimate of 3.3 K.

I studied physics at Princeton University before switching my major to mechanical engineering, where I specialized in control theory and feedback loops, a topic that will be important when we get into the details of climate change modeling.

«The authors find themselves ironically somewhat caught up in the very psychological feedback loop that they are writing about,» said Michael Mann, a climate scientist and director of the Earth System Science Center at Pennsylvania State University, in an email.

This summer he will return to Greenland with a team of researchers to try to clarify what role black carbon from wildfires (which, in another feedback loop, are made worse by climate change) and other sources may have played.

In one of the troubling feedback loops of the changing climate, dark ice is partially caused by the warmer Arctic summers climate change has brought us: More warmth means less fresh snowfall to cover areas of accumulated sediment, changes to the shape and size of ice grains that make them less reflective, and more liquid near the surface.

We particularly consider climate - related responses in the context of linkages to disturbances such as pests, diseases and fire, and associated feedback loops.

In addition, this massive release of carbon will only perpetuate climate change due to what scientists call a positive feedback loop.

Water vapor is involved in an important climate feedback loop.

«Understanding this positive feedback loop has provocative implications for understanding climate variability in Earth's past,» said Jellinek.

As the ice is increasingly punctured by cryoconite, more and more heat is captured, melting increasing amounts of ice in a feedback loop that might spell the end of pack ice — one of our most important defenses to runaway climate change.

This 2 - port approach is of course simple, but it is simple only if you realise that massive climate change has not been caused by massive impact to the Earth's climate in the past — that there must be a negative feedback loop.

This is my point — we don't need a complicated model of the earth's climate because it is clear from historical data that the earth's climate is in a powerful negative feedback loop which keeps the clmiate very stable, and we can find out all sorts of things about how this negative feedback loop responds to changes at its inputs by looking at past data.

There are plenty of FEEDBACK LOOPS in the climate system, and in the various forces driving the climate system.

What we need is a climate forcing event of known magnitude and a measurement of the clmiate change caused to be able to get a feeling for the gain in the negative feedback loop and hence a feeling for the sensitivity to other changes that might influence the climate.

2006, the year when we connected positive feedback loops to abprupt climate change / as happend a few times in earth history.

Old positive feedback examples in climate change... «Feedback Loops In Global Climate Change Point To A Very Hot 21st Century Using deuterium - corrected temperature records for the ice cores, which yield hemispheric rather than local temperature conditions, GCM climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperaturefeedback examples in climate change... «Feedback Loops In Global Climate Change Point To A Very Hot 21st Century Using deuterium - corrected temperature records for the ice cores, which yield hemispheric rather than local temperature conditions, GCM climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperature.&raquin climate change... «Feedback Loops In Global Climate Change Point To A Very Hot 21st Century Using deuterium - corrected temperature records for the ice cores, which yield hemispheric rather than local temperature conditions, GCM climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperature.climate change... «Feedback Loops In Global Climate Change Point To A Very Hot 21st Century Using deuterium - corrected temperature records for the ice cores, which yield hemispheric rather than local temperature conditions, GCM climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperatureFeedback Loops In Global Climate Change Point To A Very Hot 21st Century Using deuterium - corrected temperature records for the ice cores, which yield hemispheric rather than local temperature conditions, GCM climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperature.&raquIn Global Climate Change Point To A Very Hot 21st Century Using deuterium - corrected temperature records for the ice cores, which yield hemispheric rather than local temperature conditions, GCM climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperature.Climate Change Point To A Very Hot 21st Century Using deuterium - corrected temperature records for the ice cores, which yield hemispheric rather than local temperature conditions, GCM climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperature.climate sensitivity, and a mathematical formula for quantifying feedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperaturefeedback effects, Torn and Harte calculated the magnitude of the greenhouse gas - temperature feedback on temperaturefeedback on temperature.»

Farmer Abdellah Slimani, 48, president of a farmers» cooperative in Marchouch, believes the feedback loop has helped him and fellow farmers to improve their own methods as climate change continues to impact harvests.