First, science is not done by congressional edict, nor is it a matter of opinion. After reading this blurb, I looked at some of the names of scientists that were listed and spotted an entry for an astrophysicist. I did a search for this so-called "one of Israel's top (and "prolific" in one post) young scientists," astrophysicist Nir Shariv. First, if this guy is so prolific and he does solar physics, why doesn't he have any refereed publications in
Solar Physics, the top journal (world-wide) in solar physics and solar astronomy? I also did a literature search of all major astronomy journals at
http://adsabs.harvard.edu/abstract_service.html for scientific publications of this guy for the past 5 years and he has no publications.
I then did a Google search of this guy and found many entries associated with various businesses and conservative websites. Most of these point to the same article published in
http://www.nationalpost.com/story.html?id=069cb5b2-7d81-4a8e-825d-56e0f112aeb5&k=0.
Day 1 of my lectures in General Physics I discusses the scientific method. In this discussion, I tell the students that scientific theories are not a matter of opinion. Real science is not first published in newspapers, it's published in refereed scientific journals.
I also saw on one of these web sites that this astrophysicist claimed that the Sun's magnetic field has been weakening over the last 20 or 30 years which has allowed more cosmic rays to reach the Earth's atmosphere (and I assume this implies a heating of the atmosphere). This statement is so incredibly ignorant that if this Shariv guy even exists, his Ph.D. in astrophysics should be stripped from him. Again, go to the SOHO site and have a look around. There is no evidence that the Sun's average magnetic field strength has been continually weakening above and beyond what occurs during a given sunspot cycle. There are some cycles that are weaker than other cycles, but these weaker cycles have happened in the past as well and the Earth's temperature was not affected by much during these times. Also, the Earth's magnetic field protects us from cosmic rays, not the Sun's. At the Earth location, the Earth's magnetic field is far stronger than the Sun's magnetic field. Also, as I described in my solar discussion, weaker magnetic fields on the Sun result in a diminished X-ray and UV flux which should cause a cooling of the Earth's atmosphere, not a heating. Finally, cosmic rays will not heat the Earth's atmosphere, surface, nor oceans. In order for them to have any measurable impact on the planet-wide temperature, the flux of cosmic rays would be high enough to cause mass extinctions. It's simple conservation of energy, total kinetic energy of cosmic rays = change of atmosphere's thermal energy. The astronomically large number of cosmic rays required to raise the Earth's average temperature by even 1 Kelvin would be enough to kill us all of cancer. Also, particle physicists often measure the cosmic ray flux, and their daughter particles, muons. I have seen no alerts published by the American Physical Society telling us to take cover.
Once again, don't believe everything you read on the web without doing a thorough study as to whether what is written is correct science. I'll say it once again, opinions are not science.
This will be my last entry in this thread. It takes too long to write this stuff up and I have a NASA proposal that I have to get out the door by next week.
Cheers everybody!
P.S. Whenever an article uses adjectives like "top," "prolific," "most accomplished," etc. to describe somebody, be wary of what you are reading. Authors like using adjectives like this when they are trying to convince the reader of whatever dogma the author is trying to promote.