ecostory 33/2007
"Die Schweiz wird diese Veränderungen,
die durch den Klimawandel bis zum Jahr 2050 auftreten dürften,
verkraften können..."

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Die Schweiz und der Klimawandel

Die Zusammenfassung für Politikgestalter und -gestalterinnen vom 6. April 2007
(Summary for Policymakers - IPCC)
schreibt u.a., dass der Klimawandel folgendes bewirken wird:
      High confidence
  • increasing ground instability in permafrost regions, and rock avalanches in mountain regions
  • increased run-off and earlier spring peak discharge in many glacier- and snow-fed rivers [1.3];
  • warming of lakes and rivers in many regions, with effects on thermal structure and water quality [1.3];
  • earlier timing of spring events, such as leaf-unfolding, bird migration and egg-laying [1.3];
  • there has been a trend in many regions towards earlier ÔgreeningÕ 5 of vegetation in the spring linked to longer thermal growing seasons due to recent warming. [1.3, 14.2]
      Medium confidence
  • effects on agricultural and forestry management at Northern Hemisphere higher latitudes, such as earlier spring planting of crops, and alterations in disturbance regimes of forests due to fires and pests [1.3];
  • some aspects of human health, such as heat-related mortality in Europe, infectious disease vectors
  • in some areas, and allergenic pollen in Northern Hemisphere high and mid-latitudes [1.3, 8.2, 8.ES];

Die nächste Zeile weist unseres Erachtens auf die grösste Gefahr überhaupt hin:

Over the course of this century net carbon uptake by terrestrial ecosystems is likely to peak before mid-century and then weaken or even reverse, thus amplifying climate change. ** [4.ES]

Das bedeutet, dass sich der Klimawandel ab Mitte des Jahrhunderts durch seine Auswirkungen wahrscheinlich selber verstärken wird.

Für Europa wird folgendes spezifisch vorausgesagt:
    Summary for Policymakers April 6 th , 2007 page 11 Europe
    For the first time, wide ranging impacts of changes in current climate have been documented:
    retreating glaciers, longer growing seasons, shift of species ranges, and health impacts due to a heat wave of unprecedented magnitude. The observed changes described above are consistent with those projected for future climate change. *** N [12.2, 12.4, 12.6]
  • Nearly all European regions are anticipated to be negatively affected by some future impacts of climate change and these will pose challenges to many economic sectors. Climate change is expected to magnify regional differences in EuropeÕs natural resources and assets. Negative impacts will include increased risk of inland flash floods, and more frequent coastal flooding and increased erosion (due to storminess and sea-level rise). The great majority of organisms and ecosystems will have difficulties adapting to climate change. Mountainous areas will face glacier retreat, reduced snow cover and winter tourism, and extensive species losses (in some areas up to 60% under high emission scenarios by 2080). *** D [12.4]¥IPCC WGII Fourth Assessment Report
  • In Southern Europe, climate change is projected to worsen conditions (high temperatures and drought) in a region already vulnerable to climate variability, and to reduce water availability, hydropower potential, summer tourism, and in general, crop productivity. It is also projected to increase health risks due to heat waves and the frequency of wildfires. ** D [12.2, 12.4, 12.7]
  • In Central and Eastern Europe, summer precipitation is projected to decrease, causing higher water stress. Health risks due to heat waves are projected to increase. Forest productivity is expected to decline and the frequency of peatland fires to increase. ** D [12.4]
  • In Northern Europe, climate change is initially projected to bring mixed effects, including some benefits such as reduced demand for heating, increased crop yields and increased forest growth. However, as climate change continues, its negative impacts (including more frequent winter floods, endangered ecosystems and increasing ground instability) are likely to outweigh its benefits. ** D [12.4] Adaptation to climate change is likely to benefit from experience gained in reaction to extreme climate events, by specifically implementing proactive climate change risk management adaptation plans. *** N [12.5]
Der Allgemeinheit bislang fast unbekannt ist folgende Auswirkung auf die Ozeane:
  • The uptake of anthropogenic carbon since 1750 has led to the ocean becoming more acidic with an average decrease in pH of 0.1 units [IPCC Working Group I Fourth Assessment]. However, the effects of observed ocean acidification on the marine biosphere are as yet undocumented. [1.3] (Vergleiche Ozeane - Kohlendioxidaufnahme)

War es bewusst, den Bericht am Karfreitag zu veröffentlichen? Die christlichen Feiern zu Ostern haben die Reaktionen sicherlich überlagert.

Andererseits sind die Prophezeihungen dermassen angsteinflössend, dass ein Schweigen verständlich ist. Besser vergisst man die Probleme und hofft, die Zukunft möge eine Lösung bringen.

Die Tendenz in den Medien ist wie üblich. Die Drohung ist da aber wir müssen uns nicht zu viele Sorgen machen.
Und indertat, die Schweiz unterscheidet sich hierin nicht sehr von den manchen Ländern die in Brüssel Druck ausübten - die Mächte die da sind - üben Druck aus, damit wir nicht alarmiert werden und wirklich wirksame Massnahmen erforderlich werden.
Die Medien berichten emotionslos, wie hier abgebildet auf der DRS-Webseite vom 9.4.2007.
"Sofortiges Handeln ist unabdingbar", heisst es. Schön. Aber was genau? Das, was man machen könnte und sollte, die Produktion und den Konsum und den Verkehr einschränken, nur noch langlebige Güter herstellen, langsamer werden, und keine neue Strassen und Verkehrsmittel mehr bauen, ist noch ausser Sichtweite. Ein Wachstumsstopp ist auch noch tabu.
Warum sollten wir auch. "Die Schweiz wird diese Veränderungen, die durch den Klimawandel bis zum Jahr 2050 auftreten dürften, verkraften können."( * )
Also machen wir munter weiter auf unserem Wachstumspfad - bis die Hochwasser und Bergstürze uns des besseren belehren.

Helmut Lubbers, 9 April 2007


Wachstum La terre est une boule - The Earth is finite - Die Erde ist rund Begrenzt
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http://go.sosd.com/servlet/nrp?cmd=sty&cid=RIM&pgn=1&ino=1066725&cat=Science&lno=1
Global warming report: diplomats win negotiations, but scientists have quiet last say By Seth Borenstein ASSOCIATED PRESS 10:36 a.m. April 7, 2007
BRUSSELS -- Two distinctly different groups, data-driven scientists and nuanced offend-no-one diplomats, collided and then converged this past week. At stake: a report on the future of the planet and the changes it faces with global warming.
An inside look at the last few hours of tense negotiations at the Intergovernmental Panel on Climate Change reveals how the diplomats won at the end thanks to persistence and deadlines. But scientists quietly note that they have the last say.
Diplomats from 115 countries and 52 scientists hashed out the most comprehensive and gloomiest warning yet about the possible effects of global warming, from increased flooding, hunger, drought and diseases to the extinction of species.
The 23-page summary certainly didn't sound diplomatic. But it was too much so, scientists said.
In the past, scientists at these meetings felt that their warnings were conveyed, albeit slightly edited down. But several of them left Friday with the sense that they had lost control of their document. At one point, NASA's Cynthia Rosenzweig filed a formal protest and left the building, only to return, make peace and talk in positive tones. Others talked about abandoning the process altogether.
“There was no split in the science -- they were all mad,” said John Coequyt, who observed the closed-door negotiations for the environmental group Greenpeace.
But Yvo de Boer, a diplomat who is the top climate official for the United Nations, countered that it was a “difficult choice.” If it stayed the way scientists originally wrote it, some countries would not accept nor be bound by the science in the document. By changing the wording, “in exchange the countries are bound to this,” de Boer said.
The report doesn't commit countries to action, like the 1997 Kyoto Protocol, but those involved agree that the science is accurate and that global warming is changing the planet and projected to get much worse.
Here's how negotiations went, based on interviews and an unusual opportunity for The Associated Press to observe the last 3½ hours of debate.
The four-day meeting was supposed to end Thursday afternoon but was extended to Friday morning. A news conference was scheduled for 10 a.m. Friday to release the report, but the document wasn't finished until after that time.
Interpreters had been sent home at 2 a.m. Friday due to financial issues. Some pages had not been discussed and some of the most critical issues were still not solved as small group negotiations stalled.
Panel co-chairman Martin Parry of the United Kingdom acknowledged that some parts of the document were eliminated “because there was not enough time to work it through as well.”
With such deadline problems, some countries -- especially China, Saudi Arabia and at times Russia and the United States -- were able to play hard ball.
China and Saudi Arabia wanted to lower the level of scientific confidence (from more than 90 percent to 80 percent) that the report had in a statement about current global warming effects and it looked like they would win because they wouldn't accept the original wording. That's when Rosenzweig protested and walked.
A U.S.-based compromise saved the day, avoiding any mention of scientific confidence.
A comparison of the original document, written by scientists, and the finished paper showed major reductions in forecasts for hunger and flooding victims. Instead of “hundreds of millions” of potential flood victims, the report said “many millions.” A key mention of up to 120 million people at risk of hunger because of global warming was eliminated.
Yet, scientists have their fallback: a second summary that consists of 79 densely written, heavily footnoted pages.
The “technical summary,” which will eventually be released to the public but was obtained by The Associated Press, will not be edited by diplomats. The technical summary, Rosenzweig said, contains “the real facts.”
Some of its highlights, not included in the 23-page already-released summary:
“More than one sixth of the world population live in glacier- or snowmelt-fed river basins and will be affected by decrease of water volume.” And depending on how much fossil fuels are burned in the future, “262-983 million people are likely to move into the water stressed-category” by 2050.
Global warming could increase the number of hungry in the world in 2080 by anywhere between 140 million and 1 billion, depending on how much greenhouse gas is emitted into the air over the next few decades.
“Overall a 2 to 3 fold increase of population to be flooded is expected by 2080.”
Malaria, diarrhea diseases, dengue fever, tick-borne diseases, heat-related deaths will all rise with global warming. But in the United Kingdom, the drop in cold-related deaths will be bigger than the increase in heatstroke related deaths.
In eastern North America, depending on fossil fuel emissions, smog will increase and there would be a 4.5 percent increase in smog-related deaths.
Because global warming will hurt the poor more, there will be more “social equity” concerns and pressure for governments to do more.
On the Net: The Intergovernmental Panel on Climate Change: www.ipcc.ch/ The summary of the report: www.ipcc.ch/SPM6avr07.pdf Associated Press writer Arthur Max contributed to this report.
Sponsored Links (ASSOCIATED PRESS
10:36 a.m. April 7, 2007
BRUSSELS -- Two distinctly different groups, data-driven scientists and nuanced offend-no-one diplomats, collided and then converged this past week. At stake: a report on the future of the planet and the changes it faces with global warming.
An inside look at the last few hours of tense negotiations at the Intergovernmental Panel on Climate Change reveals how the diplomats won at the end thanks to persistence and deadlines. But scientists quietly note that they have the last say.
Diplomats from 115 countries and 52 scientists hashed out the most comprehensive and gloomiest warning yet about the possible effects of global warming, from increased flooding, hunger, drought and diseases to the extinction of species.
The 23-page summary certainly didn't sound diplomatic. But it was too much so, scientists said.
In the past, scientists at these meetings felt that their warnings were conveyed, albeit slightly edited down. But several of them left Friday with the sense that they had lost control of their document. At one point, NASA's Cynthia Rosenzweig filed a formal protest and left the building, only to return, make peace and talk in positive tones. Others talked about abandoning the process altogether.
“There was no split in the science -- they were all mad,” said John Coequyt, who observed the closed-door negotiations for the environmental group Greenpeace.
But Yvo de Boer, a diplomat who is the top climate official for the United Nations, countered that it was a “difficult choice.” If it stayed the way scientists originally wrote it, some countries would not accept nor be bound by the science in the document. By changing the wording, “in exchange the countries are bound to this,” de Boer said.
The report doesn't commit countries to action, like the 1997 Kyoto Protocol, but those involved agree that the science is accurate and that global warming is changing the planet and projected to get much worse.
Here's how negotiations went, based on interviews and an unusual opportunity for The Associated Press to observe the last 3½ hours of debate.
The four-day meeting was supposed to end Thursday afternoon but was extended to Friday morning. A news conference was scheduled for 10 a.m. Friday to release the report, but the document wasn't finished until after that time.
Interpreters had been sent home at 2 a.m. Friday due to financial issues. Some pages had not been discussed and some of the most critical issues were still not solved as small group negotiations stalled.
Panel co-chairman Martin Parry of the United Kingdom acknowledged that some parts of the document were eliminated “because there was not enough time to work it through as well.”
With such deadline problems, some countries -- especially China, Saudi Arabia and at times Russia and the United States -- were able to play hard ball.
China and Saudi Arabia wanted to lower the level of scientific confidence (from more than 90 percent to 80 percent) that the report had in a statement about current global warming effects and it looked like they would win because they wouldn't accept the original wording. That's when Rosenzweig protested and walked.
A U.S.-based compromise saved the day, avoiding any mention of scientific confidence.
A comparison of the original document, written by scientists, and the finished paper showed major reductions in forecasts for hunger and flooding victims. Instead of “hundreds of millions” of potential flood victims, the report said “many millions.” A key mention of up to 120 million people at risk of hunger because of global warming was eliminated.
Yet, scientists have their fallback: a second summary that consists of 79 densely written, heavily footnoted pages.
The “technical summary,” which will eventually be released to the public but was obtained by The Associated Press, will not be edited by diplomats. The technical summary, Rosenzweig said, contains “the real facts.”
Some of its highlights, not included in the 23-page already-released summary:
“More than one sixth of the world population live in glacier- or snowmelt-fed river basins and will be affected by decrease of water volume.” And depending on how much fossil fuels are burned in the future, “262-983 million people are likely to move into the water stressed-category” by 2050.
Global warming could increase the number of hungry in the world in 2080 by anywhere between 140 million and 1 billion, depending on how much greenhouse gas is emitted into the air over the next few decades.
“Overall a 2 to 3 fold increase of population to be flooded is expected by 2080.”
Malaria, diarrhea diseases, dengue fever, tick-borne diseases, heat-related deaths will all rise with global warming. But in the United Kingdom, the drop in cold-related deaths will be bigger than the increase in heatstroke related deaths.
In eastern North America, depending on fossil fuel emissions, smog will increase and there would be a 4.5 percent increase in smog-related deaths.
Because global warming will hurt the poor more, there will be more “social equity” concerns and pressure for governments to do more.
On the Net: The Intergovernmental Panel on Climate Change: www.ipcc.ch/ The summary of the report: www.ipcc.ch/SPM6avr07.pdf Associated Press writer Arthur Max contributed to this report.
Sponsored Links) 04/10 9:24 AM
BRUSSELS -- Two distinctly different groups, data-driven scientists and nuanced offend-no-one diplomats, collided and then converged this past week. At stake: a report on the future of the planet and the changes it faces with global warming.
An inside look at the last few hours of tense negotiations at the Intergovernmental Panel on Climate Change reveals how the diplomats won at the end thanks to persistence and deadlines. But scientists quietly note that they have the last say.
Diplomats from 115 countries and 52 scientists hashed out the most comprehensive and gloomiest warning yet about the possible effects of global warming, from increased flooding, hunger, drought and diseases to the extinction of species.
The 23-page summary certainly didn't sound diplomatic. But it was too much so, scientists said.
In the past, scientists at these meetings felt that their warnings were conveyed, albeit slightly edited down. But several of them left Friday with the sense that they had lost control of their document. At one point, NASA's Cynthia Rosenzweig filed a formal protest and left the building, only to return, make peace and talk in positive tones. Others talked about abandoning the process altogether.
“There was no split in the science -- they were all mad,” said John Coequyt, who observed the closed-door negotiations for the environmental group Greenpeace.
But Yvo de Boer, a diplomat who is the top climate official for the United Nations, countered that it was a “difficult choice.” If it stayed the way scientists originally wrote it, some countries would not accept nor be bound by the science in the document. By changing the wording, “in exchange the countries are bound to this,” de Boer said.
The report doesn't commit countries to action, like the 1997 Kyoto Protocol, but those involved agree that the science is accurate and that global warming is changing the planet and projected to get much worse.
Here's how negotiations went, based on interviews and an unusual opportunity for The Associated Press to observe the last 3½ hours of debate.