I use phenomenon because it is an unexplained event. Not everything can be explained by science. It just like the Useful Idiots (mostly secular humanists) that say we must some about Global Warming\Cooling\Climate Change right now. The earth has been around for ~ 4 billion years. Going from red hot volcanic planet to an Ice Ball and everything in between. The earth will survive us until ~5.5 billion years from now when our sun will become a red giant.