Solar activity-climate relations: A different approach

► Firm relation between cycle-average sunspot number and global temperatures 1850-1980. ► The relation suggests that variations in global temperatures relate to changes in TSI. ► Minor modulation during individual cycles excludes mechanisms such as the GCR model. ► Solar cycle length found to be an inconsistent parameter for global temperature changes. ► Timing suggests sun's internal energy transmission is modulated by its magnetic fields.