By: Brent Tracy

Brent Tracy — Thu, 11 Sep 2008 23:48:34 +0000

As to scientific evidence evidence that there is global warming as a result of human activity, I refer you to the following from the website:
cgi.stanford.edu/group/wais/cgi-bin/index.php?p=4941.
“1. We do know that Global Warming is real and caused by human activity. How do we know?
We do know because of the so-called “paleoclimatic data”. Starting in 1980 scientists started drilling for ancient ice-core samples in Greenland and Antarctica. Much like tree rings, the level of seasonal depositions of snow leave distinct lines in the ice, and this can be used to establish a time scale for that layer of ice. By analyzing the air bubbles trapped in the ice when it formed, we can determine the amount of CO2 and other greenhouse gases that existed in the atmosphere at the time when that ice-core sample was formed. Thus the ice serves as a kind of permanent record of atmospheric conditions that existed in the past, and by making measurements and analysing this data, we can read this record. This then can be correlated with the average atmospheric temperature at the same time, which we can also determine by other means. Thus temperature can be plotted as a function of time and levels of greenhouse gases for the past 420,000 years. This data has now been determined and published.
The data show that the natural oscillation of the level of CO2 in the atmosphere due to natural causes, oscillated between 180 ppm and 290 ppm, in roughly 100,000-year cycles. We also know from the data that the Earth’s temperature has closely tracked the concentration of CO2 and other greenhouse gases. This natural oscillation was the pattern for the past 420,000 years prior to 1750, the approximate start of the Industrial Revolution.
We know that global warming is caused by human activity, because the data also shows a dramatic change in the above described natural pattern that happened since about 1750. The data for the past 250 years establishes a dramatic departure from that observed in the previous 420,000 years. Beginning in about 1750 the level of CO2 and other greenhouse gases starts to rise sharply and continuously and shoots past the previous maximum level of 290 ppm. This establishes without a doubt that politically motivated alternative theories of those that contend, for example, that human activity cannot have caused the rise in CO2, because natural phenomena such as volcano emissions and so on have a much larger effect are just plainly wrong.”
I would like to know the source for the claim that over 19,000 scientists say global warming is a false crisis. It would also be good to know how many scientists say there really is a crisis. If millions say there is a crisis, the fact that 19,000 disagree may not carry much weight.

By: Valentina Lobos

Valentina Lobos — Sat, 14 Jun 2008 17:53:01 +0000

I am Chilean, but I found your blog and is very interesting for me because, I am addressing the issue of global warming, it would be interesting to see him and could leave any comment to see what is lacking. That if the blog is in Spanish.
Well, take care
Greetings and good luck

By: Gene Horner

Gene Horner — Fri, 13 Jun 2008 03:31:17 +0000

Amer EL-Ahraf is making a huge leap of faith by making the statement “We must develop rational strategies to fix the problem.” Aside from the belief of the radical religion of global warming that humans are to blame for what over 19,000 U.S. scientist say is a false crisis, there is no viable scientific evidence (computer simulations are not scientific evidence) that anything other than normal temperature variations have ocurred. Satellite and weather balloon temperature measuring stations, do not show what the computer models have said would occur. Members of the UN’s IPCC panel dispute the supposed conclusion of the climate reports. They state that UN policy makers, not the scientists involved, fabricated the conclusion. (Prof. John Christy, Prof. Paul Ricard to name but two)
Even Al Gore’s ice core samples show it’s temperature that causes CO2 rise…. with a time delay of approx. 800 years, not the other way around.

Comments on: Global Warming: Fix the problem, not the blame

By: Brent Tracy

By: Valentina Lobos

By: Gene Horner