From: John Newman <jnn@synfin.org>
   >I disagree, vehemently.  Global warming is not a red herring.
   Permafrost is melting, oceans are rising and acidifying, and the future
   for big >coastal cities is looking very bleak indeed.  There is a
   scientific consensus on this issue.
   I don't see how there can be "scientific consensus" unless there are
   accurate computer models which show how up climate temperature
   increases as a product of addition of CO2 to the atmosphere.  Both
   qualitatively and quantitatively.  How much do these problems
   represent?
   From Lord Kelvin:

“When you can measure what you are speaking about, and express it in numbers,
you know something about it, when you cannot express it in numbers, your
knowledge is of a meager and unsatisfactory kind; it may be the beginning of
knowledge, but you have scarely, in your thoughts advanced to the stage of
science.”

   [1]http://www.goodreads.com/quotes/166961-when-you-can-measure-what-you
   -are-speaking-about-and
   There is also the prospect of adding SO2 to the high atmosphere to
   counteract heating, which could be a very cheap solution.
               Jim Bell

References

   1. http://www.goodreads.com/quotes/166961-when-you-can-measure-what-you-are-speaking-about-and