Cosmic Rays. Modified by the solar magnetic field and pertubations, in turn directly? affecting cloud formation. (More cosmic rays, more clouds; more magnetic field strength, less cosmic rays reach earth.
http://www.youtube.com/watch?v=ANMTPF1blpQ Svensen hypothesis, hated by IPCC et al!
- Scientists Gagged From Interpreting Study That Links Climate Change To Cosmic Rays (tipggita32.wordpress.com)
- Video: Are Cosmic Rays Causing Global Warming? (littlegreenfootballs.com)
- Cloud formation on Earth may be linked to cosmic rays (theextinctionprotocol.wordpress.com)
- What’s this about cosmic rays and global warming? (openparachute.wordpress.com)