According to a new report, there is more water in the Earth's hydrologic cycle, which is leading to increased problems with flooding. According to the report, "Using satellite observations, NASA and university researchers have found that rivers and melting ice sheets delivered 18 percent more water to the oceans in 2006 than in 1994." Additionally, there is more moisture being held in the atmosphere, which is leading to increased precipitation.
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Comments
I thought the hydrological cycle was a closed system?
Ann,
It is closed, nothing has changed in that regard. However. the hydrological cycle takes into account all of the water which is semi or permanently frozen on the earth as well. If more and more of that frozen water thaws, it ends up becoming an active part of the hydrological cycle again instead of remaining a reservoir; herein lies the problem. With an increased volume of water presently moving through the hydrological cycle, there is more water available to fall to the earth during rain storms and even a slight increase could have problems in flooding-sensitive areas.
No it not but although its kinda retarted cuz its not.