“However, there are more important indirect effects: sunspots are associated with what we call “active regions”, with large magnetic structures containing very hot material (being held in place by the magnetism). This causes more ultraviolet (or UV) radiation (the rays that give you a suntan or sunburn), and extreme ultraviolet radiation (EUV). These types of radiation have an impact on the chemistry of the upper atmosphere (e.g. producing ozone). Since some of these products act as greenhouse gases, the number of sunspots (through association with active regions) may influence the climate in this way.”
http://sohowww.nascom.nasa.gov/classroom/notsofaq.html#SUNSPOT_CLIMATE
But they say radiation does not. How can UV increase if radiation does not ? UV is radiation. They contradict themselves because they do not want to admit their holy grail, radiation does not increase, is horribly wrong. This is not not picking. It demonstrates how NASA missunderstood the solar cycle for decades and now wants to cover up their own incompetence and stupidity.