Rocks can melt like chocolate! Not in our pots and pans, but at extreme temperatures under the earth's crust. Under pressure, they rise up a chimney and erupt. Whether it is a slow flow of thick lava or an explosion of smoke and rocks, it is a destructive phenomenon if it takes place in an inhabited area. Fortunately, some volcanoes are sleeping peacefully, like those in our good old Auvergne...
Raconté par Ségolène