Den stora tråden om global uppvärmning/växthuseffekten

Om någon ambitiös person orkar så kan man hämta rapporten här

http://globalghgcostcurve.bymckinsey.com/

Manns berömda hockeyklubba från 1998 innehöll fel men verkar dock i stora drag vara korrekt. McIntyres kritik var tydligen också överdriven enligt en artikel i Science och en artikel i Geophysical research letters.

Nej, den är inte "i huvudsak korrekt"!! Tar man med de proxies som Mann "censurerade" så vips kommer den medeltida värmen tillbaka. Dessutom så kan man skicka in random noise, och ut ploppar ändå en hockeyklubba!

Om du ska ha någon som helst trovärdighet kvar så föreslår jag att du tar avstånd från denna falska propagandatingest!

Klimatfrågan är rätt känsloladdad

Jag tror inte det var en propagandatingest utan att Mann och de som granskade artikeln från 1998 missade. Kanske är jag naiv men jag tror ej heller att McIntyre medvetet överdrev felen när han kritiserade artikeln. Läste du länken jag skickade med ?

Hur tror du PNAS tänkte förra året när de publicerade denna artikel ?

http://www.pnas.org/content/105/36/13252.full.pdf+html?sid=20f453f1-a7e4-4325-b88b-e1b6eca9881b

Jag tror de granskade den extra noga pga kritiken och uppmärksamheten kring den gamla artikeln från 1998. Likartade resultat igen. Personligen kan tänka mig att NAS ligger hyfsat rätt när det gäller denna fråga.

http://dels.nas.edu/dels/rpt_briefs/climate_change_2008_final.pdf

De skriver ung.
"Bevisen som finns indikerar att senaste årtiondena är de varmaste sedan 900-talet"

Tror du att PNAS och NAS bedriver propaganda ? Vilka källor anser du vara mest trovärdiga i klimatfrågan ?

Klimatfrågan är rätt känsloladdad

Global climate change, prior to the 20th century, appears to have been initiated primarily by major changes in volcanic activity. Sulfur dioxide (SO2) is the most voluminous chemically active gas emitted by volcanoes and is readily oxidized to sulfuric acid normally within weeks. But trace amounts of SO2 exert significant influence on climate. All major historic volcanic eruptions have formed sulfuric acid aerosols in the lower stratosphere that cooled the earth's surface ~ 0.5 °C for typically three years. While such events are currently happening once every 80 years, there are times in geologic history when they occurred every few to a dozen years. These were times when the earth was cooled incrementally into major ice ages. There have also been two dozen times during the past 46,000 years when major volcanic eruptions occurred every year or two or even several times per year for decades. Each of these times was contemporaneous with very rapid global warming. Large volumes of SO2 erupted frequently appear to overdrive the oxidizing capacity of the atmosphere resulting in very rapid warming. Such warming and associated acid rain becomes extreme when millions of cubic kilometers of basalt are erupted in much less than one million years. These are the times of the greatest mass extinctions. When major volcanic eruptions do not occur for decades to hundreds of years, the atmosphere can oxidize all pollutants, leading to a very thin atmosphere, global cooling and decadal drought. Prior to the 20th century, increases in atmospheric carbon dioxide (CO2) followed increases in temperature initiated by changes in SO2.

By 1962, man burning fossil fuels was adding SO2 to the atmosphere at a rate equivalent to one “large” volcanic eruption each 1.7 years. Global temperatures increased slowly from 1890 to 1950 as anthropogenic sulfur increased slowly. Global temperatures increased more rapidly after 1950 as the rate of anthropogenic sulfur emissions increased. By 1980 anthropogenic sulfur emissions peaked and began to decrease because of major efforts especially in Japan, Europe, and the United States to reduce acid rain. Atmospheric concentrations of methane began decreasing in 1990 and have remained nearly constant since 2000, demonstrating an increase in oxidizing capacity. Global temperatures became roughly constant around 2000 and even decreased beginning in late 2007. Meanwhile atmospheric concentrations of carbon dioxide have continued to increase at the same rate that they have increased since 1970. Thus SO2 is playing a far more active role in initiating and controlling global warming than recognized by the Intergovernmental Panel on Climate Change. Massive reduction of SO2 should be a top priority in order to reduce both global warming and acid rain. But man is also adding two to three orders of magnitude more CO2 per year to the climate than one “large” volcanic eruption added in the past. Thus CO2, a greenhouse gas, is contributing to global warming and should be reduced. We have already significantly reduced SO2 emissions in order to reduce acid rain. We know how to do it both technically and politically.

In the past, sudden climate change was typically triggered by sudden increases in volcanic activity. Slow increases in greenhouse gases, therefore, do not appear as likely as currently thought to trigger tipping points where the climate suddenly changes. However we do need to start planning an appropriate human response to future major increases in volcanic activity.

Fick just följande brev från Elsevier:



Bjuder även på abstractet:


Artikeln finns tillgänglig här: http://dx.doi.org/10.1016/j.tsf.2009.01.005

Fick just följande brev från Elsevier:



Bjuder även på abstractet:


Artikeln finns tillgänglig här: http://dx.doi.org/10.1016/j.tsf.2009.01.005

Ni som har lust får gärna sprida detta informationsblad om växthuseffekten:

http://rapidshare.com/files/201251018/infoblad_global_uppvaermning_ver2.pdf
sid1. Orsakar människan en global uppvärmning?
sid2. diagram med förklarande bildtext.
sid3. Citat från forskare och vetenskapsmän
sid4. Citat från klimatalarmist, Vill du veta mer?, Filmer, Hemsidor

Alternativ version med serie:
http://rapidshare.com/files/201251218/infoblad_global_uppvaermning_ver2_medserie_ver1.pd f

Falsk propaganda, amerikansk kapitalist-lobbyism utan vetenskaplig förankring är inte "information"