Original sentence: 50 percent of temperature variation.According to the study, solar activity is responsible for c.In 2013, a study by Svensmark, Pepke and Pedersen published in Physics Letters A showed, that there is in fact a correlation between cosmic rays and the formation of aerosols and clouds.In April 2008, Professor Terry Sloan of Lancaster University published a paper in the journal Environmental Research Letters titled "Testing the proposed causal link between cosmic rays and cloud cover", which found no significant link between cloud cover and cosmic ray intensity in the last 20 years
Edited sentence: In April 2008, Professor Terry Sloan of Lancaster University published a paper in the journal Environmental Research Letters titled "Testing the proposed causal link between cosmic rays and cloud cover", which found no significant link between clomad@sharktooth.deud cover and cosmic ray intensity in the last 20 years