You are free to post most relevant excerpts from your sites as answer to my objections posted in past posts. Please refute in this thread what I've said.
I've tried to read your website. (http://www.skepticalscience.com/climate ... period.htm" onclick="window.open(this.href);return false;)
Your site states this:
"a doubling of CO2 causes a warming of around 3°C."
Prove that.
Experience have shown something else:
According to the Greens, during the post-war boom global warming should have pushed temperatures up. But the opposite happened. "As a matter of the fact, the decrease in temperature, which was very noticeable in the 60s and 70s, led many people to fear that we would be going into another ice age," remembers Fred Singer, former Chief Scientist with the US Weather Program.
http://www.ourcivilisation.com/aginatur ... tm#suspend" onclick="window.open(this.href);return false;
100 million years ago, there was six times as much carbon dioxide in the atmosphere as there is now, yet the temperature then was marginally cooler than it is today. Many scientists have concluded that carbon dioxide doesn't even affect climate. http://www.ourcivilisation.com/aginatur ... tm#suspend" onclick="window.open(this.href);return false; Explain that, Kim!
Compared to former geologic periods, concentrations of CO2 in our atmosphere are still very small and may not have a statistically measurable effect on global temperatures. For example, during the Ordovician Period 460 million years ago CO2 concentrations were 4400 ppm while temperatures then were about the same as they are today.
http://www.geocraft.com/WVFossils/last_400k_yrs.html" onclick="window.open(this.href);return false;
How can above be?
CO2 lags an average of about 800 years behind the temperature changes-- confirming that CO2 is not the cause of the temperature increases. One thing is certain-- earth's climate has been warming and cooling on it's own for at least the last 400,000 years, as the data below show. At year 18,000 and counting in our current interglacial vacation from the Ice Age, we may be due-- some say overdue-- for return to another icehouse climate!http://www.geocraft.com/WVFossils/last_400k_yrs.html
Refute the radiative heating physics:
"Even if CO2 levels were many times higher, radiative heating physics shows that it would make virtually no difference to temperature because it has a very limited heating ability. With CO2, the more there is, the less it heats because it quickly becomes saturated.
http://www.geocraft.com/WVFossils/greenhouse_data.html" onclick="window.open(this.href);return false;
"Extreme weather" was even prior to industrialization:
Scientists also agree – for it is a matter of record – that floods of similar severity have struck the east coast of Australia before: twice in the 19th century and most recently in 1974. These earlier floods could not have been caused by manmade “global warming”, because there was not enough of it to make any difference at that time."
http://scienceandpublicpolicy.org/origi ... loods.html" onclick="window.open(this.href);return false;
http://scienceandpublicpolicy.org/image ... floods.pdf" onclick="window.open(this.href);return false;
According to Piers Corbyn, Director of Weather Action, many scientists do not accept the idea that pollution is causing global warming. Environmentalists claim that world temperatures have risen one degree Fahrenheit in the past century, but Corbyn points out that the period they take as their starting point — around 1880 — was colder than average. What's more, the timing of temperature changes does not appear to support the theory of global warming. Most of the rise came before 1940 —before human-caused emissions of 'greenhouse' gases became significant.
According to the Greens, during the post-war boom global warming should have pushed temperatures up. But the opposite happened. "As a matter of the fact, the decrease in temperature, which was very noticeable in the 60s and 70s, led many people to fear that we would be going into another ice age," remembers Fred Singer, former Chief Scientist with the US Weather Program.
Even in recent times, the temperature has not behaved as it should according to global warming theory. Over the last eight years, temperature in the southern hemisphere has actually been falling. Moreover, says Piers Corbyn, "When proper satellite measurements are done of world temperatures, they do not show any increase whatsoever over the last 20 years."
But Greens refuse to accept they have could have been proved wrong. Now they say global warming can involve temperature going both up and down.
"Global warming is above all global climatic destabilisation," says Edward Goldsmith, editor of the Ecologist, "with extremes of cold and heat when you don't expect it. You can't predict climate any more. You get terrible droughts in certain cases; sometimes you get downpours. In Egypt, I think, they had a rainfall for the first time in history — they suddenly had an incredible downpour. Water pouring down in places where it's never rained before. And then you get droughts in another area. So it's going to be extremely unpredictable."
Scientists also point out that nature produces far more greenhouse gases than we do. For example, when the Mount Pinatubo volcano erupted, within just a few hours it had thrown into the atmosphere 30 million tonnes of sulphur dioxide— almost twice as much as all the factories, power plants and cars in the United States do in a whole year. Oceans emit 90 billion tonnes of carbon dioxide, the main greenhouse gas, every year. Decaying plants throw up another 90 billion tonnes, compared to just six billion tonnes a year from humans.
What's more, 100 million years ago, there was six times as much carbon dioxide in the atmosphere as there is now, yet the temperature then was marginally cooler than it is today. Many scientists have concluded that carbon dioxide doesn't even affect climate.
http://www.ourcivilisation.com/aginatur ... tm#suspend" onclick="window.open(this.href);return false;
Human factor is not needed to explain warming and cooling of the planet. Climate change was happening for 4.5 billion of years, and today's 390ppm is nothing extremely high compared to as much as 7,000ppm of CO2 that nature produced by itself. Even when humans were using lots of factories, there were times when the temperature have gone DOWN. This is contrary to AGW proponents claim that humans cause temperature to rise.
Today's "rise" in temperature is no different from rise in temperatures that have occured multiple times within the past 400,000 years. Moreover, during time of the dinosaurs the average global temperature was MUCH hotter than today. This shows to us again, that humans are not required to raise the temperature.
Current temperatures have nothing to suggest that they have to be caused by humans to be so high as they are now.
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