'No doubt' global warming is real, page 1

Here's a prime example of what I mentioned above:
"Solar activity reaches new high"
Link:
physicsweb.org...

Excerpt:
"2 December 2003

Geophysicists in Finland and Germany have calculated that the Sun is more magnetically active now than it has been for over a 1000 years. Ilya Usoskin and colleagues at the University of Oulu and the Max-Planck Institute for Aeronomy say that their technique - which relies on a radioactive dating technique - is the first direct quantitative reconstruction of solar activity based on physical, rather than statistical, models (I G Usoskin et al. 2003 Phys. Rev. Lett. 91 211101)

Sunspots are produced by magnetic activity inside the Sun. The more active the Sun is, the more spots are produced. Observations of sunspots began in 1610 - soon after the telescope was invented - and no other directly obtained data exists from before this time.

Now, Usoskin and co-workers have used the concentration of beryllium-10 in polar ice as a proxy for historic levels of solar activity. Beryllium-10 is produced when cosmic rays interact with particles in the Earth's atmosphere. The radioisotope then falls to the ground where it is stored in layers of ice. The Sun's magnetic field can deflect cosmic rays away from the Earth, so a stronger field should lead to less beryllium-10 being produced, and vice versa."

Found these articles in a cross-reference of the subject matter:
"A 1,000-Year History of Sunspot Numbers"
Link:
www.co2science.org...

Excerpt:
"Both the Medieval and Modern Maximums in sunspot number and solar variability parameters stand out head and shoulders above all other periods of the past thousand years, with the Modern Maximum slightly besting the Medieval Maximum. Due to the many empirical evidences for climate modulation by solar variability, therefore, it is only to be expected, on this basis, that current temperatures may well be higher than at any other time during the past millennium. Since other factors come into play too, however, and since the Medieval and Modern Maximums were not all that different, this conclusion may not be precisely correct. In any event, the observations of this study suggest no need whatsoever for invoking variations in the air's CO2 content as a cause of temperature variations during any period of the past thousand years."

And this: (provides links to this theory)
"Medieval Warm Period -- Solar Influence"
Link:
www.co2science.org...

And:
"Global Warming News"
Link:
www.opinionet.com...

Again, it has been mentioned here at ATS, that between the periods of the 11th century and the 14th, Greenland flourished with farms growing row crops and raising livestock, as did arctic Canada. WOuld this not lend to the argument that Global Warming has virtually nothing to do with human activities, per se'?

regards
seekerof

[Edited on 6-12-2003 by Seekerof]