An interesting article appears today in the San Francisco Chronicle about debate at UC-Berkeley over the cause of the extinction of the dinosaurs. Was it caused by a comet striking the Earth? Or something else? A more precise estimate of the timing of the strike has been produced.
But what happened to the Disney hypothesis – which Southern Californians can relate to – that it was all due to too much sunshine and not enough water?
[youtube http://www.youtube.com/watch?v=JO1dtHJF5bc?feature=player_detailpage]
Anyway, you can read the article at:
http://www.sfgate.com/science/article/Dinosaur-extinction-battle-flares-4261978.php