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| Global Warming- Driven by Humans or Natural Cycles? http://www.envirolink.org/forum/viewtopic.php?f=3&t=14656 |
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| Author: | Wayne Stollings [ Sun May 27, 2012 5:47 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Wayne Stollings [ Sun May 27, 2012 5:57 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Wayne Stollings [ Sun May 27, 2012 6:12 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Snowy123 [ Sun May 27, 2012 7:22 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Snowy123 [ Sun May 27, 2012 7:25 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Snowy123 [ Sun May 27, 2012 7:35 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Snowy123 [ Sun May 27, 2012 7:36 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Wayne Stollings [ Sun May 27, 2012 11:14 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Wayne Stollings [ Sun May 27, 2012 11:18 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Wayne Stollings [ Sun May 27, 2012 11:23 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Wayne Stollings [ Sun May 27, 2012 11:26 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Wayne Stollings [ Sun May 27, 2012 11:38 am ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
http://arxiv.org/pdf/0803.2298.pdf In conclusion, no corroboration of the claim of a causal connection between the changes in ionization and cloud cover, made in [1, 2], could be found in this investigation. From the distribution of the depth of the dip in solar cycle 22 with geomagnetic latitude (the VRCO) we find that, averaged over the whole Earth, less than 23% of the dip comes from the solar modulation of the cosmic ray intensity, at the 95% confidence level. This implies that, if the dip represents a real correlation, more than 77% of it is caused by a source other than ionization and this source must be correlated with solar activity. http://atmos-chem-phys.net/8/7373/2008/ ... 3-2008.pdf The overall conclusion, built on a series of independent statistical tests, is that no clear cosmic ray signal associated with Forbush decrease events is found in highly susceptible marine low clouds over the southern hemisphere oceans. Whether such a signal exists at all can not be ruled out on the basis of the present study, due to the small number of cases and because the strongest Forbush decrease events indicate slightly higher correlations than the average events. Even though those strong events are rare, with only 6 events over 5 years, the amplitude is similar to that occurring during the solar cycle, so from a climate perspective these strong events may deserve particular attention. Further investigations of a larger number of such events are needed before final conclusions can be drawn on the possible role of galactic cosmic rays for clouds and climate http://www.atmos-chem-phys.net/10/1885/ ... -2010.html Here, we report unique observations on atmospheric aerosol formation based on measurements at the SMEAR II station, Finland, over a solar cycle (years 1996–2008) that shed new light on these presumed relationships. Our analysis shows that none of the quantities related to aerosol formation correlates with the cosmic ray-induced ionisation intensity (CRII). We also examined the contribution of ions to new particle formation on the basis of novel ground-based and airborne observations. A consistent result is that ion-induced formation contributes typically significantly less than 10% to the number of new particles, which would explain the missing correlation between CRII and aerosol formation. Our main conclusion is that galactic cosmic rays appear to play a minor role for atmospheric aerosol formation events, and so for the connected aerosol-climate effects as well. |
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| Author: | Snowy123 [ Sun May 27, 2012 1:43 pm ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Snowy123 [ Sun May 27, 2012 1:51 pm ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
| Author: | Snowy123 [ Sun May 27, 2012 1:53 pm ] |
| Post subject: | Re: Global Warming- Driven by Humans or Natural Cycles? |
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