I was in Austria on Pasterze glacier [1] few weeks ago. While I was hiking in valley that was not there 30 years ago, I had one question in my mind all the time

I was in Austria on Pasterze glacier [1] few weeks ago. While I was hiking in valley that was not there 30 years ago, I had one question in my mind all the time. Glacier was formed hundred's years ago. So it was not there before. If we going back to previous state, we are living in incredible times where we are able to see huge landscape changes during one lifetime. I will probably tell my grandchildren in future that I seen glacier that is no longer there. Which is fascinating. [1] https://en.wikipedia.org/wiki/Pasterze_Glacier https://en.wikipedia.org/wiki/Pasterze_Glacier