Bemærkelsesværdige citater.....

Every time we hear a government minister talking about climate change, they seem to be drawn towards scapegoating China and its rising emissions, but a big factor in that rise is that China has become the major factory for the western world, so their greenhouse gas emissions are largely driven by higher levels of consumption in the west.

We've really seen an unexpected acceleration in the rate of accumulation of CO2 itself...I mean that's been beyond the limits of projection, beyond the worst-case scenario as we thought of it in 2001, and some of the other gases also have been produced on a larger scale than was easy to have imagined.

What the report establishes is that the amount of greenhouse gas in the atmosphere is already above the threshold that could potentially cause dangerous climate change. So if I was trying to summarise it, what it says is that we already stand an unacceptable risk of dangerous climate change and that the need for action is ever more urgent.

We've really seen an unexpected acceleration in the rate of accumulation of CO2 itself...I mean that's been beyond the limits of projection, beyond the worst-case scenario as we thought of it in 2001, and some of the other gases also have been produced on a larger scale than was easy to have imagined

Nogle mener, at de højere temperaturer, den kraftigere regn og en optrapning i antalletaf efterårs- og vinterstorme bare er en naturlig variation i vejret. Men den seneste rapport fra FN's klimapanel, IPCC, viser med al tydelighed, at der er tale om menneskeskabte påvirkninger. Jeg har selv været skeptisk over for det faktum, men det synes jeg ikke, man kan tillade sig at være mere. Vi kan ikke bare lukke øjnene, hvis vi skal kunne se vores børnebørn i øjnene.

The I.P.C.C. was set up to be the lowest common denominator, to weed out anything anyone could disagree with. It was deliberately created, largely under the influence of the Reagan administration, because governments didn't want a bunch of self-appointed scientists from academies and so on out there.

Even the Saudi government has to agree. That means that when the I.P.C.C. says you're in trouble, you're really in trouble

Kunnskap om de naturlige endringene i fortidens klima, kan hjelpe oss med å tolke dagens situasjon. Fortiden er vår nøkkel til framtiden.

Mennesket er i stand til å påvirke klimaet. Dette synes uomtvistelig.

Hvis deler av dagens oppvarming er naturlig, så behøver ikke det menneskeskapte bidraget være så dramatisk som vi hittil har trodd. Men hvis vi derimot er på en naturlig vei mot et kaldere klima, så er den menneskeskapte oppvarmingen vi ser i dag mye mer dramatisk enn det politikere og FNs klimapanel har antatt.

Men hvis vi derimot er på en naturlig vei mot et kaldere klima, så er den menneskeskapte oppvarmingen vi ser i dag mye mer dramatisk enn...

It appears this acidification is now taking place over decades, rather than centuries as originally predicted. It is happening even faster in the cooler waters of the Southern Ocean than in the tropics. It is starting to look like a very serious issue.

There's not much debate about how it happens: put more CO2 into the air above and it dissolves into the oceans.

When CO2 levels in the atmosphere reach about 500 parts per million, you put calcification out of business in the oceans

As an issue it's a bit of a sleeper. Global warming is incredibly serious, but ocean acidification could be even more so.

The rapid melting of the Arctic should be seen as an early warning of the broader climate crises to come if the U.S. and the world do not respond to global warming with the necessary urgency. Instead, like beachgoers chasing the receding waters immediately prior to a tsunami to gather up the exposed shellfish, nations and industry are racing to the newly ice-free areas to stake claims for fossil fuels and shipping routes that would lead us further down the path to climate catastrophe.

As an issue it's a bit of a sleeper. Global warming is incredibly serious, but ocean acidification could be even more so.

Aksel Wiin-Nielsen, der er tidligere generaldirektør i FN-organet World Meterological Organization, beskyldte i interviewet klimaforskere for at banke en panikstemning op alene for at opretholde deres forskningsbevillinger.

I believe our children and grandchildren will look back at the year 2007 and ask one of two questions...

Either they will ask about us -- What were they doing? What were they thinking about and how could they let that catastrophe happen? Didn't they listen to the scientists? Didn't they see the glaciers and polar caps melting? Didn't they see the fires?

Or will they ask another question. I want them to look back at 2007 and ask: How did they find the moral courage to rise up and solve the problem everyone said was impossible to solve?

Our children and grand children are depending on us to meet this emergency.

I hear people talking about getting our emissions under control by carbon trading and other interventions sometime in the next 10 years. We don't really have 10 years. We're bang in the middle of the window identified by scientists in the Intergovernmental Panel on Climate Change report - between 2000 and 2015 - when a turnaround might just hold warming to two degrees, beyond which the consequences become dire. But there's no sign of it happening....

You have to recognise the urgency, and it doesn't seem to be there. I'm not making a partisan comment, it's not recognised by either of the parties. We really need to scale up the efforts nationally and internationally.

...the effect of transforming hundreds and hundreds of thousands of tons of maize, of wheat, of beans, of palm oil, into agricultural fuel is absolutely catastrophic for the hungry people."

The world price of wheat doubled in one year and the price of maize quadrupled, leaving poor countries, especially in Africa, unable to pay for the imported food they need to feed their people — and the poor people in those countries unable to pay the soaring prices for food, he said.

So it's a crime against humanity — it's a crime against humanity to convert agricultural productive soil into soil ... which will be burned into biofuel.....What has to be stopped is ... the growing catastrophe of the massacre (by) hunger in the world.

Global warming has the potential to destabilise the world. In my view, this will quickly become the defining issue of our age.

Interessen for klimaet er den nye topprioritet på dagsordenen. På alle niveauer, politisk herhjemme og i hele verden, bevæger vi os i retning af klimaproblematikken. Og hvis der skal ske noget, er det vigtigt, at der er opmærksomhed om emnet.

Jeg føler en desperation. Når jeg læser aviserne, når jeg iagttager, hvad folk lægger vægt på, når jeg registrerer, hvad der driver vores samfund, og når jeg så samtidig med videnskaben som grundlag ved, at menneskeheden står over for sin største udfordring nogensinde ... Af en eller anden grund har vi ikke hidtil været i stand til at formidle denne følelse af bydende nødvendighed til offentligheden. Er det, fordi man ikke direkte kan se det, der sker? Er det, fordi himlen stadig er blå?

Jeg håber ikke, det er sandt, at menneskeheden kun formår at lære under dybe kriser. Hvorfor skal vi vente på oversvømmelserne, på at folk dør af hedebølgerne, når nu videnskaben giver os så klar besked om situationens alvor?

Dette er ikke et problem, der forsvinder, men det er heller ikke et problem, som vi ikke har redskaberne til at løse. Det har vi. Min desperation udspringer af, at der ikke handles.

Our work shows that global warming is beginning to take its toll on the Greenland ice sheet which, as a relic feature of the last Ice Age, has already been living on borrowed time and seems now to be in inexorable (ubønhørlig) decline.

If you have an extra 3-5 degrees Celsius warming ... then you can reach a point of no return ... bringing the eventual demise of the ice sheet. That could take probably 1,000 or 2,000 years

Søren_Søndergaard skrev:
Når blot det er for den rette tro må vi jo leve med at gå på kompromis med de videnskablige principper!

"Når jeg ikke kan lade Solen og Maanen staa op, men alligevel maa gaa og se paa, at de gør det, kan jeg ikke holde det ud længere.
Jeg faar ikke et roligt Øjeblik, før jeg selv kan lade dem staa op og gaa ned, som jeg vil."

"Alle Wahrheit durchläuft drei Stufen. Zuerst wird sie lächerlich gemacht oder verzerrt. Dann wird sie bekämpft. Und schließlich wird sie als selbstverständlich angenommen."

Arthur Schopenhauer, tysk filosof

"They laughed at Copernicus. They laughed at the Wright Brothers. Yes, well, they also laughed at the Marx Brothers. Being laughed at does not mean you are right".

- Michael Shermer (tidligere klima-benægter og kreationist)

Alle Behauptungen eines Kneipenphilosophs über den Klimawandel durchlaufen vier Stufen:

1. Zuerst wird grundlegende Mißverständnisse und reines Quatsch als Weltzersetzende wissenschaftliche Umwaltungen hervorgehoben.

2.Danach wird jemand ihm kaltblütig versuchen, einige grundlegende Einsichten der Frage des Klimawandels beizubringen.

3. Dann wiederholt er nochmals unbeeindrückt seine Mißverständnisse.

4. Schließlich wirft er Anklagen gegen alles und jeden über religiöse Verschwörungen, die ihn als mutiges Wahrheitszeugnis verfolgen.

.....the state of ice sheet modeling is far different from the state of atmosphere-ocean modeling, as underscored by the recent observations. At this juncture, numerical modeling simply does not provide a credible basis for quantitative projection of ice sheet behavior in a warmer world.

The limitations of ice sheet models were revealed starkly by the collapse of the northern sections of the Larson B ice shelf in 1998 and 2002. Glaciers bounded by the landward edge of the ice shelf accelerated toward the sea while glaciers bounded by the more southerly section of the ice shelf, which remained intact, didn't. Apparently, backpressure on glaciers from the abutting ice shelf provides a significant portion of the restraining forces keeping land-based ice in place, at least in some instances. The recent behavior of glaciers farther south in West Antarctica, and in Greenland, points to a similar dynamical response to ice-shelf fragmentation.

Many glaciologists regarded these observations as a clear test of the ability of ice sheet models to forecast dynamical changes in a warming ice sheet, a test the models failed. The long-standing inability of ice sheet models to reproduce the ice streams of West Antarctica, unexplained dynamical contributions to the mass balance of the Greenland ice sheet during the late 1990s and its apparent basal response in one location to surface melt-water reinforced this skepticism. The problem is threefold.....

Für mich besteht Klimaschutz in der Ambition bestimmter Menschen, das Klima zu ändern. Und das erinnert mich sehr stark an den alten kommunistischen Slogan: Wir können auch befehlen, dass es regnet und der Wind weht. Das hat man uns schon in der Schule gesagt: Wir Kommunisten können alles. Daran denke ich, wenn ich das Wort Klimaschutz höre. Der Versuch, das Klima zu ändern, erinnert mich an die Kommunisten.

India is prepared to commit that our per-capita carbon emissions will never exceed the average per-capita emissions of developed industrial economies....We cannot continue with a global development model in which some countries continue to maintain high carbon emissions.

Runaway greenhouse theories contradict energy balance equations

Money

Unfortunately my working relationship with my NASA supervisors eroded to a level that I am not able to tolerate. My idea of the freedom of science cannot coexist with the recent NASA practice of handling new climate change related scientific results.

..positive feedback(s) occur(s)...there are lots of other examples. Of course, there are plenty of negative feedbacks as well (the increase in long wave radiation as temperatures rise or the reduction in atmospheric poleward heat flux as the equator-to-pole gradient decreases) and these (in the end) are dominant (having kept Earth's climate somewhere between boiling and freezing for about 4.5 billion years and counting).

People often conclude that the existence of positive feedbacks must imply 'runaway' effects i.e. the system spiralling out of control. However, while positive feedbacks are obviously necessary for such an effect, they do not by any means force that to happen. Even in simple systems, small positive feedbacks can lead to stable situations as long as the 'gain' factor is less than one (i.e. for every initial change in the quantity, the feedback change is less than the original one). A simple example leads to a geometric series for instance; i.e. if an initial change to a parameter is D, and the feedback results in an additional rD then the final change will be the sum of D+rD+r2D...etc. ). This series converges if |r|<1, and diverges ('runs away' ) otherwise. You can think of the Earth's climate (unlike Venus' ) as having an 'r' less than one, i.e. no 'runaway' effects, but plenty of positive feedbacks.

What's happened now is that La Nina has come along and depressed temperatures slightly but these changes are very small compared to the long-term climate change signal, and in a few years time we are confident that the current record temperature of 1998 will be beaten when the La Nina has ended.

What's happened now is that La Nina has come along and depressed temperatures slightly but...

Vi har den højeste solaktivitet i tusind år, og det er hovedårsagen til den globale opvarmning. Jeg mener ikke, at der rent videnskabeligt er belæg for at sige, at det især er mennesket, der har ændret på klimaet.

Nu går solaktiviteten formentlig ned, og så får vi koldere klima. Måske noget der minder om "den lille istid

Det bliver spændende at følger med klodens temp. udvikling i de næste år

Despite all the talk, the situation is getting worse. Levels of greenhouse gases continue to rise in the atmosphere and the rate of that rise is accelerating. We are already seeing the impacts of climate change and the scale of those impacts will also accelerate, until we decide to do something about it.