Great article in July Discover magazine on global warming

There is a great article in the July 2007 issue of Discover magazine (0n newstands now!) about global warming. It is currently on-line here. It is an interview with Danish scientist Henrik Svensmark and the research that he has done on how solar activity influences the amount of cosmic rays received at the Earth's surface and how that in turn affects the global average of cloud cover. During periods of high solar activity, such as that which we are undergoing now (according to the article, the highest level of solar activity in the past 1000 years) there will be fewer clouds and hence a warmer Earth. No human induced CO2 activity needed! The interview is also interesting in that it goes into a little bit how Svensmark has been castigated by some of his peers because his research goes against the conventional orthodoxy.