As rain or snow falls from the clouds, collects as groundwater in the soil freezes at the poles and in high mountains to ice flows in rivers to the sea, evaporates, finally, rises up as water vapour in the sky and forms clouds, from which it goes down again elsewhere as rain or snow to the earth.

In this cycle, the water changes several times its physical state between liquid, solid and gaseous. Is controlled of this constantly changing state by the temperatures prevailing in the different regions of the earth, in the air, as well as on and in the ground, Lord.

The framework of the exhibition (18. May to 18. August) to form large-format photographs by Bernhard Edmaier. The flight shots ridged Alpine glaciers, and extensive river deltas, or a fantastic cloud formations taken by the well-known professional photographer and geologist in various regions of the earth. They show water as the main landscape design force on the earth.

In an interactive part, produced by the Museum “man and nature” in Munich, answered the questions to the water – also unusual, such as: “how Much is the weight of a cloud?” The answer surprised: Although it consists only of water vapor, it brings a fair-weather cloud the Size of a cubic kilo-meter to a weight of 1000 tons.

An important theme of the exhibition is climate change. Due to the increasing temperatures, the distribution of liquid and frozen water, and water vapor in the atmosphere is changing.

“Many of the observations and model calculations suggest that a clear fact: global warming heats up the water cycle,” said Museum Director Toni Bürgin on the Thursday before the media.

More water from the oceans evaporates, more of the precipitation falls over Land, and thus also the outflow of water. There will be increasing weather extremes. Floods and storms are increasing.

as a result of climate change, the sea level is rising, permafrost is thawing, the ice of the glaciers at the poles and in the Alps melts. The dramatic ice loss can in the Alps, to document the Before-and-After pictures of the Bernese photographer Simon Oberli, who photographed the fall of the glacier for 15 years.

At six stations, the most important Water habitats on the basis of an animal of The small glacier flea, the feels in the ice of the Alps the most comfortable and the trout that swim against the current are presented:; the beaver, the largest native Rodent in the meadows; the grass snake, the feel of lakes home; the grey Heron on the river Delta and finally, the killer clam in the sea.

(SDA)