I would never condone the random climbing of stones, but the talk of damage to lichens always interests me..
I wonder about the touching of the stones with bare hands- oils and acids can't be good for lichen can they? The hugging and general embracing of stones must also impact on lichen as well I would have thought. Same goes for sitting on and leaning against stones and yet the lichen are thriving or at least appear to be.
Is it possible that they are a lot more resilient than we think..
How long did they take to recover from the paint attack - Does anybody know?
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