From its beginning and throughout its existence, the Royal mine was run by the Żupy krakowskie Salt Mines.

The people found a lump of salt in there and when they split it in two, discovered the princess's ring.

Oil fields, gas fields, saline formations, unmineable coal seams, and saline filled basalt formations have been suggested as storage sites.

It is an open question as to whether the polynyas of the Arctic can produce enough dense water to form a major portion of the dense water required to drive the thermohaline circulation.

The mine, built in the 13th century, produced table salt continuously until 2007, as one of the world's oldest salt mines still in operation.

In recent years, Taliban representatives, aware of widespread eagerness to end the country s decades of fighting, have insisted that their political ambitions are confined to Afghanistan.

Insofar as the thermohaline circulation governs the rate at which deep waters are exposed to the surface, it may also play an important role in the concentration of carbon dioxide in the atmosphere.

But it has become increasingly clear that excessively strong or badly formulated intellectual property rights may actually impede innovation and not just by increasing the price of research.