This article in Past Horizons seems to suggest that rock art could disappear over time or be worn away due to climate change in Northumberland, which is a bit of a shock, it did seem like the one permanent feature in a changing world......
"The International Centre for Cultural and Heritage Studies (ICCHS) and School of Civil Engineering and Geosciences (CEG) studied the physical underpinnings and condition of Neolithic and Bronze Age rock art panels in Northumberland. They conclude climate change could cause the art to vanish because new evidence suggests stones may deteriorate more rapidly in the future."
http://www.pasthorizonspr.com/index.php/archives/03/2013/rock-art-at-risk-of-deterioration-due-to-climate-change
|