Svensmark’s Cosmic Jackpot: “Evidence of nearby supernovae affecting life on Earth”

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Here are the main results:

• The long-term diversity of life in the sea depends on the sea-level set by plate tectonics and the local supernova rate set by the astrophysics, and on virtually nothing else.
• The long-term primary productivity of life in the sea – the net growth of photosynthetic microbes – depends on the supernova rate, and on virtually nothing else.
• Exceptionally close supernovae account for short-lived falls in sea-level during the past 500 million years, long-known to geophysicists but never convincingly explained..
• As the geological and astronomical records converge, the match between climate and supernova rates gets better and better, with high rates bringing icy times.

Source: http://wattsupwiththat.com/2012/04/2...life-on-earth/