1. Climate has always changed
Of course climate has always changed. Every climate scientist knows this.
2. Accurate temperature measurements made from weather balloons and satellites since the late 1950s show no atmospheric warming since 1958. In contrast, averaged ground-based thermometers record a warming of about 0.4°C over the same time period. Many scientists believe that the thermometer record is biased by the Urban Heat Island effect and other artifacts.
You are referencing a study by Spencer and Christy (1992). More recent studies by Mears et al (2003 and 2005) have shown that there were errors in the original study. Your information is out-of-date.
Also, climate scientists are well aware of the urban heat island effect and have taken it into account.
3. Despite the expenditure of more than US$50 billion dollars looking for it since 1990, no unambiguous anthropogenic (human) signal has been identified in the global temperature pattern.
There are multiple lines of evidence pointing to humans as the dominant force of climate change.
4. Carbon dioxide is a minor greenhouse gas
CO2 causes a rise in water vapor, which in turn causes more CO2 to be released. This is known as a feedback loop.
5. On both annual (1 year) and geological (up to 100,000 year) time scales, changes in atmospheric temperature PRECEDE changes in CO2. Carbon dioxide therefore cannot be the primary forcing agent for temperature increase (though increasing CO2 does cause a diminishingly mild positive temperature feedback).
You have created a false dichotomy. Sparks can cause fire and fire can cause sparks. Likewise, changes in CO2 can both cause
and be caused by global warming. Climate scientists are well aware of the implications.
6. The UN Intergovernmental Panel on Climate Change (IPCC) has acted as the main scaremonger for the global warming lobby that led to the Kyoto Protocol. Fatally, the IPCC is a political, not scientific, body.
Numerous papers have shown that the IPCC greatly
underestimates climate response. The full IPCC reports are available to anyone who is interested. IPCC is made up of thousands of scientists working to summarize an incredible amount of data. It's hard to argue that it's not a scientific body.
7. The Kyoto Protocol will cost many trillions of dollars and exercises a significant impost those countries that signed it, but will deliver no significant cooling (less than .02°C by 2050, assuming that all commitments are met).
Current cost estimates are less than half of IPCC's original
minimum estimate. Having a project cost come in below the projected minimum cost is practically unheard of. The Kyoto Protocol is seen by many as not enough, but at least a first step. Good luck trying to get every country in the world to cooperate on anything, let alone something with so much corporate opposition.
8. Climate change is a non-linear (chaotic) process, some parts of which are only dimly or not at all understood. No deterministic computer model will ever be able to make an accurate prediction of climate 100 years into the future.
Global climate is not as chaotic as you think it is. Computer models predict climate averages, not day-to-day weather. Currently, IPCC's models have been underestimating things like sea-level rise and ice melt.
Climate models are constantly being tested on historic climate data as well as major climate events such as volcanoes. They do very well and are only improving.
9. Not surprisingly, therefore, experts in computer modelling agree also that no current (or likely near-future) climate model is able to make accurate predictions of regional climate change.
Current models are limited to about 100km x 100km regions. Scientists are constantly improving this as computer power allows. No-one is claiming to be able to make accurate regional predictions.
10. The biggest untruth about human global warming is the assertion that nearly all scientists agree that it is occurring, and at a dangerous rate.
No-one is asserting that ALL scientists agree. However, the consensus grows in fields that are more closely related to climate. Published climate scientists have a 97% consensus on human-caused global warming. This is corroborated across three separate studies and endorsed by virtually every scientific organization around the world (those that have made a statement one way or the other). Not a single scientific academy has rejected that consensus.
Perhaps you're talking about the 31,000 signatures on the OISM petition. That figure represents 0.3% of the 10 million graduated scientists in the US (or 0.1% if you include only climate-related scientists).
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