From Lee C. Gerhard [leeg@sunflower.com], Senior Scientist Emeritus, Kansas Geological Survey, University of Kansas, Lawrence, Kansas
Can anyone out there provide me with any empirical data in support of the theory that humans control climate warming? No, don't tell me that climate is changing - we geologists absolutely know that climate changes all the time, in both directions, and at many scales of time and intensity.
Don't give me results of computer modeling - those are not empirical data, they are the results of very serious attempts to place numbers on natural phenomena, but they are still based on assumptions and estimates, and have not been able to replicate past climate changes, particularly over the last 1500 years. Computer models are currently nothing more than scientific theories set to mathematical music.
Bring us some data, some values that support the concept. Right now the data show correlative changes in temperature and solar activity, modified by ocean current movement and orbital variations, many of which are predictable and which have operated to change climate for billions of years.
Yes, there is an increase in carbon dioxide, but its effects drop logarithmically with its increase. Thus, it doesn't pose a threat. All told the full greenhouse effect, mostly water vapor, does make Earth a habitable planet.
Please don't argue that climate is changing at rates and intensities not ever seen before. That is just not true. Read the data already out there from the geologists and those who study past climate change.
Tell me why otherwise competent scientists argue for their theory but fail to provide any support for their theory other than constant repetition of untrue statements and alarmist exaggerations. Upton Sinclair, author of The Jungle said, "It is difficult to get a man to understand something when his salary depends upon his not understanding it." Is that what is happening?
Friday, February 15, 2008
A CLIMATE CHANGE CHALLENGE
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