Global Warming...Yay or Nay? Do you believe in global warming being a direct cause of human activities? If so, please write why. If not, please write why. Now is your chance to persuade a couple of people either way. 10 points for best answer.


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The Earth%26#039;s climate has historically been affected by solar activity, Milankovitch Cycles (involving the Earth%26#039;s orbit) and volcanic activity. Over the last 1000 years, solar activity has matched global temperature anomolies very well. The Mideaval Maximum was a time of increased sun spot activity that corresponded to the Mideaval Warming period. During the Maunder Minimum there were almost no sunspots observed, and we encountered a period refered to as the Little Ice Age. We are currently at the end of a very busy solar cycle called the Modern Maximum. http://pubs.usgs.gov/fs/fs-0095-00/fs-00... This article in Nature 2004 states the the sun has been exceptionally active for the past 70 years, and in fact has not been this active for over 8 millenia. http://cc.oulu.fi/~usoskin/personal/natu... Belivers claim that the sun has been proven not to be the cause of global warming, and I understand that this claim has been peer reviewed, but I have a problem with it. If increased solar activity caused warming in the past, and decreased solar activity caused cooling in the past, why is it that a hyper-active sun is not causing warming now?

The above are the foundation of my disbelief, but there is much more.

Someone at GISS added an extra .15 degrees to recent temperature measurements which NASA has now removed. Dr. Hansen, the father of AGW works at GISS.

There are questions as to the accuracy of the CO2 record which is mainly taken from ice cores. http://www.biomind.de/nogreenhouse/daten...
http://www.warwickhughes.com/icecore/zjm...
http://www.pnas.org/cgi/reprint/99/19/12...

Thermometers have only been in widespread use since the mid-19th century - the beginning of global warming.

Computer models that predict future climate are not accurate. They do not accurately predict the present, giving them little or no utility for predicting the future. http://www.inscc.utah.edu/~reichler/publ...

Because the models are not accurate, all of the dooms day rhetoric about the negative effects of global warming is purely made up.

I can go on, but this is probably more than you wanted to hear! 33% 2 Votes
17% 1 Vote but it’s only a minor greenhouse gas having perhaps 5% to 15% of the overall greenhouse effect. Only 380 parts per million of the atmosphere is CO2. Of the CO2 in the atmosphere, 96% is natural, and 4% is man made (anthropogenic).

We are told that man made CO2 is causing global warming; the global temperatures are rising, the sea levels are rising, the poles are melting, and all manner of catastrophes are coming to us.

Please go and check the data. These are all authoritative sources... please check their provenance and graph the data for yourself.

Are CO2 levels rising?... Yes. (Source Scripps). http://scrippsco2.ucsd.edu/data/mlo.html

Are Global Temperature rising? Not for the last 10 years. (Source %26#039;Hadley%26#039; British Meteorological office)
http://hadobs.metoffice.com/hadcrut3/dia...

Are the Oceans warming?. Not for the last 10 years (Source NOAA). http://www.junkscience.com/MSU_Temps/NCD...

Are Sea Levels rising? No, dropping for the last 5 years (Source Colorado University)
http://sealevel.colorado.edu/current/sl_...

For the last 10 years the climate has stopped warming while CO2 levels rise. From the 1940’s to the 1970’s temperatures fell while CO2 levels rose. In 1421 the Chinese circumnavigated the North Pole. In 1959 the American nuclear submarine USS Skate surfaced at the North Pole in “open water”
http://www.navsource.org/archives/08/085... But it looks pretty frozen today (North Pole web cam, Washington University)
http://psc.apl.washington.edu/northpole/...

I am not convinced that man made CO2 has changed our climate at all. There is no doubt that we are doing all manner of bad things to the world that we should do better, but controlling CO2 is not a good place to apply our taxpayer dollars. 0% 0 Votes
31,000 Signatures Prove ‘No Consensus’ About Global Warming.........


0% 0 Votes

Apparenty scientists argue that the earth has been much warmer before now and the ice caps a lot smaller, I do however think that our Co2 output is adding to how fast it is happening this time. 0% 0 Votes

Biggest hoax ever played on mankind, do you really think the world never has weather changes?
Always follow the money trail, Gore a Democrat started all this and what is their number 1 agenda always- TAXES! 0% 0 Votes

• Answer hidden due to its low rating

  Yay, to both the fact of natural and man-made causes, and the effects are sheer devestating, well to some. As for one, the ozone layer, there is a large hole around Antartica, which is most likely from the earth naturally carrying it to the south pole. Second, the melting of the ice caps, glaciers, and will be making most floods, and distabilizing the natural force of regular salt and fresh water balance, making the weather force, this is a theory, for now. That%26#039;s one reason I believe in global warming, of its capability. Second was for how now. 2005 was set in record for the hottest year in record, in statements. And how the earth grew 1 degree in the last 100 years, which doesn%26#039;t look much but compared to the earth%26#039;s history is a movement. And thirdly, its not hard to believe its not mad-made, think if it, ants are many like us and carry over their size, so if they can do digging ant holes and tunnels at a great %26quot;civilization%26quot;, we humans can impact our planet with the industrial revolution, supply and demand, and population growth. But if anybody thinks it isnt man-made, can we at least take care of the only planet that cared for us, its like hurting your own family that raised you, in a way. 0% 0 Votes

• Answer hidden due to its low rating

  I tend to be swayed by facts obtained by the scientific method. At the moment, the preponderance of research, experiment and tests overwhelmingly points to man-made global warming hence this is what I believe.
  
  When, and if, credible scientific facts point the other direction, I will change my mind.
  
  What I won%26#039;t do, however, is confuse myself like Bob does:
  
  %26quot;Biggest hoax ever played on mankind%26quot; - this is a common statement by deniers that is never supported by evidence.
  The deniers also never explain how a global conspiracy of disparate interest groups involving millions of people in countries as varied as Antigua, Angola, Antilles...Yemen, Zambia %26amp; Zimbabwe some of whom are at war with each other - could possibly have been put together in just a few years.