First of all, I want to state that there is no doubt in my mind that global warming exists at present. I also have no doubt that carbon dioxide emissions along with emissions of other greenhouse gasses has exacerbated the matter.
However, that does not imply that global warming is caused primarily by human activities or that curtailment of human contributions would produce a significant effect to counter the warming trend. The tendency of the press to jump on the bandwagon of any scare or crisis has exaggerated the strength of the connection between emissions and climate, along with the likelihood that there is much we can do about it.
It is important to look at the long-term history of Earth's climate before jumping out of windows.
Most graphs of climate history are limited in scope to the last century or few centuries, like this one:
Source:
http://www.worldclimatereport.com/index.php/category/temperature-history/
But read this: http://www.worldclimatereport.com/index.php/2008/12/03/rethinking-observed-warming/#more-351 from the same source.
Going back further, it seems that things are not really so hot now compared to times when the Roman Empire was dominant.
Source:
http://muller.lbl.gov/pages/IceAgeBook/history_of_climate.html
Taking a longer view, one sees that climate appears to be cyclical.
Source:
http://www.seed.slb.com/en/scictr/watch/climate_change/change.htm
Here is a very long-term perspective on climate:
[Note: Time scale is logarithmic.]
Source:
http://www.scotese.com/climate.htm
One thing is clear, and that is that the Earth is currently unusually cold at present compared to the past half-billion years.
David F Mayer
Off Topic » in reply to If enough people believe anything it's considered "normal".
The problem is that almost all consideration of global warming is VERY short-term.
The whole thread (46 posts)
- Climate 'denial' is now a mental disorder
- If enough people believe anything it's considered "normal".
- The problem is that almost all consideration of global warming is VERY short-term.
- The Null Hypothesis
- Falsification of the Atmospheric Greenhouse Effect
- Gee, that's odd.
- So what you are saying is...
- Threadbare argument
- I don't even know where to start... (n/t)
- Perhaps with my first question
- No. Next? (n/t)
- And also...
- Show me the conclusive physics/models that show increasing "greenhouse gasses" produces no "greenhouse effect" (n/t)
- Good luck. For AGW there aint no such animal as falsification. ;-) (n/t)
- Oh?
- And also...
- No. Next? (n/t)
- Perhaps with my first question
- I don't even know where to start... (n/t)
- Threadbare argument
- It's not a mental disorder. They know exactly what they're doing. (n/t)
- Not surprising.
- If enough people believe anything it's considered "normal".