Cosmic rays mediate aerosol levels in the atmosphere by producing more small ions that cause water to cling to dust there by creating more low bright clouds and cooling the earth. 
In this film it is proven that the influx of cosmic rays is shown to be directly related to the position the solar system is in, in the milky way galaxy by the correlation between temperature epochs and fossil oxygen content, strata layers of sediment and iron meteorite composition. Enjoy. All part of the bigger picture.
It took them a year to get published. They really didn’t want this information out. They were also widely disclaimed and defamed. They now have VERY solid proof.
In the Mind's Eye 