That it would be advisable to move to the top of a mountain in a tropical area. The reason is that this phenomenon would change the global climate to the point of plunging Europe into a new ice age. At the same time the sea level would rise, which would cause the extinction of numerous marine fauna.
A sudden change in the salinity of the sea – for example, if all the glaciers in Greenland melted at the same time – would cause the interruption of the current known as the thermohaline circulation . This occurs because dense, salty water sinks to the depths to start a long underwater journey around the globe and reappear in the form of warm and less dense water. This oceanic circuit is responsible for the atmospheric conditions that we now enjoy on the planet; if we stop it, we will be inducing drastic and harmful changes in the global climate.
