Col Lamb wrote: ↑Fri Aug 12, 2022 4:43 pm In 2004 I visited the Rockies in Canada and we went on a tour of a Glacier in a specialised truck.
What was surprising was that in 100 years the image from about 1900 on the wall in the Visitor Centre showed a Glacier vastly larger than what we saw in 2004 when we stood in about the same place that the image was taken.
In 2004 it looked about 1/2 mile further up the valley than it did in the image.
Make of that what you will.
But what would the picture have looked like in 1800? Same as at 1900, or 1/2 a mile further up than 1900?
We had an ice age, and that is still melting away, but when did it start to melt, before human race was around?