Sentences with phrase «such climate tipping points»

«Our next goal is to acquire detailed information about such climate tipping points on human timescales, decades to a century,» van der Bilt says.

Not exact matches

Mathematically, it turns out, the shift from a healthy state to a depressed state resembles other so - called tipping points — moments of critical mass where a system, such as changes to Earth's climate or a social trend — shift rapidly from one state to another.

If there were a bad design flaw in a thermostat, such that temperatures over 100 F turned the furnace on, that room's climate would have a tipping point ~ 100 F and the room would get hard to cool whenever temperatures rose over that («positive feedback,» at least for awhile.)

# 5 Martin Pierard, I wouldn't think of a single global tipping point as such, what's important in this respect are the different climate subsystems.

My job, to steal a phrase from a climate scientist I quoted in the tipping points story, is to be «caustically honest» about such murkiness where it's real, and to be similarly probing when someone is trying to manufacture murkiness — as has happened a lot in recent years in the climate fight.

Impacts such as SLR and heat waves and crop failures and beetles killing forests and all the other dangerous Impacts and Positive Climate Feedbacks and Tipping Points....

• Such unprecedented rising temperatures — combined with anticipated rapid industrialization of the developing world — suggests we run a great risk of pushing the climate past a «tipping point» within a lifetime.

I have read further and found that the term tipping point in the realm of climate science can refer to many things such as ancient ice melting to the point of releasing additional greenhouse gases.

But there is no sign of any «tipping point» in terms of GHG concentrations — any such event would come about due to non-linear effects in the climate system.

The first report knew, and commented on, the possibilities of gradual climate change pushing ecosystems or economies over thresholds and triggering abrupt responses, but the new report focuses on such tipping points in our societies and environment.

Researchers such as James Hansen, a leading climate scientist at NASA, believe that global warming is accelerating and may be approaching a tipping point, a point at which climate change acquires a momentum that makes it irreversible.

Reducing emissions of the short - lived climate forcers black carbon and tropospheric ozone — soot and smog — has been identified by scientists as the most effective strategy to slow Arctic warming and melting in the near term, forestalling potentially irreversible tipping points such as the melting, while the world works to reduce emissions of GHGs.

In case of the Amazon rainforest, the climate tipping point is real, but there's no such thing as a threshold temperature to it.

Such a dramatic shift in a climate pattern would constitute what climate scientists call a tipping point: a sudden shift from one predictable pattern of weather to another.

Moreover, as Tim Lenton pointed out at CEC14 the tools mathematicians have developed to help predict tipping points rely on signals that are generally overwhelmed by rapid climate forcing in such systems.

Such potential «tipping points» have been identified in various components of the Earth's climate system and could have important effects on future climate.

Nasa's Gavin Schmidt has previously argued that the danger of such a methane release is low, whereas scientists like Prof Tim Lenton from Exeter University who specialises in climate tipping points, says the process would takethousands if not tens of thousands of years, let alone a decade.

It's tipping points like these that make climate change such a distinct problem: If we don't act quickly, and on a global scale, then the problem will literally become insoluble.

There are other clichés for talking about climate change: You can warn that catastrophe looms by talking about tipping points and earths in the balance; you can use military language by talking about «a war on carbon» (related: the sporty «climate on steroids»); you can go retrofuturist with aspirational bridges such as the Apollo project, Sputnik, the Manhattan Project, to name a few.

«- continued unfettered burning of all fossil fuels will cause the climate system to pass tipping points such that we hand our children and grandchildren a dynamic situation that is out of control.

Gabrielle Walker reported in 2006 that «In 2004, 45 newspaper articles mentioned a «tipping point» in connection with climate change; in the first five months of this year, 234 such articles were published.»

Tipping points can occur during climate change when the climate reaches a state such that strong amplifying feedbacks are activated by only moderate additional warming.

The problem for environmentalists is that no such «tipping point» has been identitifed by climate science, and the social consequences of moving past tipping points remain poorly defined.

Specifically, is the climate dominated by positive feedbacks, such that small CO2 - induced changes in temperatures are multiplied many times, or even hit a tipping point where temperatures run away?

We also underestimated the potential importance of strong feedbacks, such as the thawing of the permafrost to release methane, a powerful greenhouse gas, as well as tipping points beyond which some changes in the climate may become effectively irreversible.»

RealClimate is wonderful, and an excellent source of reliable information.As I've said before, methane is an extremely dangerous component to global warming.Comment # 20 is correct.There is a sharp melting point to frozen methane.A huge increase in the release of methane could happen within the next 50 years.At what point in the Earth's temperature rise and the rise of co2 would a huge methane melt occur?No one has answered that definitive issue.If I ask you all at what point would huge amounts of extra methane start melting, i.e at what temperature rise of the ocean near the Artic methane ice deposits would the methane melt, or at what point in the rise of co2 concentrations in the atmosphere would the methane melt, I believe that no one could currently tell me the actual answer as to where the sharp melting point exists.Of course, once that tipping point has been reached, and billions of tons of methane outgass from what had been locked stores of methane, locked away for an eternity, it is exactly the same as the burning of stored fossil fuels which have been stored for an eternity as well.And even though methane does not have as long a life as co2, while it is around in the air it can cause other tipping points, i.e. permafrost melting, to arrive much sooner.I will reiterate what I've said before on this and other sites.Methane is a hugely underreported, underestimated risk.How about RealClimate attempts to model exactly what would happen to other tipping points, such as the melting permafrost, if indeed a huge increase in the melting of the methal hydrate ice WERE to occur within the next 50 years.My amateur guess is that the huge, albeit temporary, increase in methane over even three or four decades might push other relevent tipping points to arrive much, much, sooner than they normally would, thereby vastly incresing negative feedback mechanisms.We KNOW that quick, huge, changes occured in the Earth's climate in the past.See other relevent posts in the past from Realclimate.Climate often does not change slowly, but undergoes huge, quick, changes periodically, due to negative feedbacks accumulating, and tipping the climate to a quick change.Why should the danger from huge potential methane releases be vievwed with any less trepidation?

Without the US, China, and India making serious cuts soon, we will reach the tipping points that James Hansen and so many others are pointing out, such as those in the «State of the World 2009: Into a Warming World», and nothing will be able to stop catastrophic climate change.