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Algae Blooms Increase as World’s Lake Water Warms
Algae blooms have been associated with mass fish kills, wildlife mortality, and liver failure and irreversible neurological disease in humans. Although harmful algal blooms have been documented for more than a century, recently the number and frequency of cases have drastically increased.

The warming waters of one of central Europe's most popular holiday destinations, Switzerland's Lake Zurich, have created an ideal environment for a population explosion of toxic algae. According to research published in leading scientific journals, Lake Zurich is by no means alone. Cyanobacteria now threaten the ecological well-being of some of the world's largest water bodies, including Lake Victoria in Africa, Lake Erie in the United States and Canada, Lake Taihu in China, the Baltic Sea in northern Europe, and the Caspian Sea in west Asia.

Thomas Posch, a scientist at Lake Zurich's Limnological Station, part of the Institute of Plant Biology at the University of Zurich, discovered that increasing average air temperatures and ensuing changes in surface water temperature have provided the ideal conditions for algae to live and bloom in near-epic proportions.

 
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90% of Fish Stocks are Used Up - Fisheries Must Stop Emptying the Ocean - Nearly 90% of the world’s marine fish stocks are now fully exploited, overexploited or depleted. There is no doubt that fisheries subsidies play a big role. Without them, we could slow the overexploitation of fish stocks, deal with the overcapacity of fishing fleets, and tackle the scourge of illegal, unreported and unregulated fishing.


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