Shadow Footprints

Wanderings in Virtu and Verity.

Tuesday, November 04, 2003

Blaming the sun for global warming

The New Scientist says Sun more active than for a millennium. The team of scientists used ice cores to compare the concentration of beryllium-10 in the atmosphere. Beryllium-10 is produced when high-energy particles from space bombard the atmosphere, but when the Sun is active its magnetic field protects the Earth from these particles and levels of beryllium-10 are lower.