It shows part of the Columbia Glacier in Alaska. But the main thing of interest here is the glacial trimline -- the line dividing the dark coloured uplands with snowbanks from the lighter coloured slopes below. It's remarkably sharp here. Apparently it marks the position of the glacier surface in 1984 -- that's just 22 years before this photo was taken. During that interval the glacier surface has been lowered by 400m -- the height of the Empire State Building.
Who says that climate change isn't happening....??