Quote:
|
Originally Posted by Paradox
In the material Buddy provided was this reference:
Quote:
|
There are no direct measurements cosmic rays from before 1953. However, since it is thought that cosmic rays are strongly affected by the solar magnetic field, it is likely that the long-term changes in cosmic ray flux are similar to the long-term changes in the Geomagnetic AA Index (see above). In other words, changes in cosmic rays may help to explain changes in the Earth's surface temperature in the first half of the 20th century.
|
Cosmic Ray forcings is now a full-blown theory being vigorously studied. Sorry Buddy, it will be a slow demise but the GW theory is crumbling under the weight of the evidence. I think it is ashame because it would be great for our planet if there was in-fact a silver bullet. There is not. |
See the article ‘Cosmoclimatology’ - tired old arguments in new clothes' (9 Mar 2007) at
http://www.realclimate.org/index.php...n-new-clothes/
Quote:
|
There are a number of issues which really make the A&G paper poor in my view. One is the neglect in addressing old criticisms of the hypothesis that galactic cosmic rays (GCR) change our climate by modulating clouds (see here, here, & here). Svensmark is very vague on the lack of any trend in GCR or other solar proxies since 1952. I confronted him about this question on an European Geophysical Society (EGS) conference in Nice a few years ago, and have since published a paper also making the point. The A&G article makes selective references, without answering the serious criticism forwarded by Damon & Laut (2004), Laut (2003), or myself. To be fair, the critical paper by Kristjansson and Kristiansen (2000) is cited, albeit only to say that Svensmarks's own conclusion is "a counter-intuitive finding for some critics".
|
- it seems that the peer-review process is a bit lacking here. A number of scientists have pointed out flaws and have effectively been ignored. If you look at the graphs they present notice how the last 10 years are missing, and they they try to show trends with just 15 years of data.