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Water and Climate

Water is also energetically a special molecule: A lot of energy is needed to heat water. Therefore, water collects much warmth in lakes and oceans and has a balancing effect on the climate. It is way more balanced in the regions by the sea or near large lakes than far away from water. Ocean currents transport vast amounts of warmth from tropical regions to northern latitudes and make the climate here more enjoyable. Also, evaporated water in the atmosphere contributes significantly to the warmth transport by winds. During the evaporation process there is still more warmth energy saved in the form of the water vapor – the so-called “latent warmth”. It is released when the water vapor becomes liquid again (while raining). Furthermore, water vapor is a greenhouse gas; its share of the natural greenhouse effect is about 60 percent.