The problem has nothing to do with "the sun's rays".
40 plus years ago I was able to go to the beach with Hawaiian Tropic, which is basically cooking oil scented with coconuts. I can still remember the smell! lol.
Today it is Neutrogena SPF 45. So in 40 years I have gone from using a 0 SPF to a 45. But to add to my scientific study I also am using a 100 SPF on my piggies. I'll also cheat a little on the second day and spray the 100 on my shoulders.
My conclusion, people who claim their is no climate change or global warming are simply FOS. My results have been submitted to Zonker for peer review and will soon be published in Scientific American.