There is no clear and certain picture about how climate change will impact on the not so solid ground beneath our feet. In some areas glacial melting could reduce volcanic activity and rising sea levels could stabilise rather than destabilise has hydrates. But we mess with the world at our peril and, just as we are already seeing with the atmosphere, global warming is likely to bring more geological hazards than benefits. We have even more reasons to limit climate change and prepare for an uncertain future.
Well is it or not? They really don't know.