Mountains eroding? Global Warming? Italy's three hottest Junes of the past 250 years?

Maybe due to the stones porosity under pressure, therefor permitting larger pieces to be "leavened" from the mountain "m" because in a warmer summer the water s deeper into the micro-fractured rock, freezing and expanding in winter, and then collapsing in the following summer due to the thawing of the ice riddled rock faces?