In the usual summer spate of disaster movies, I noted a new twist. An extraterrestrial disaster from a super solar flare by our sun. The astrophysicist, (played by Nicolas Cage but not very convincingly) states that he wrote a paper on the liklihood of such an event. The mechanism of disaster is the ripping away of our ozone layer and huge radiation dose. Although the special effects were inaccurate, I was wondering if there is any evidence to support such a cataclysmic solar flare? Can we extrapolate the magnitude needed to cause irreversible damage to the earth's ecosystems?