20 km from the Cape Verde Peninsula and 30 km from Dakar, capital of Senegal, is an amazing natural phenomenon — the Pink lake or Retba, as it is called representatives of the people Wolof, the main ethnic groups in the country. The size of a giant bowl with a bright pink water reaches up to 3 sq. km. the Maximum depth does not exceed 3 meters.
The name of the lake derives from the special color of the water, which ranges from light pink to brown. The reason for the unique color of the water is a large amount of cyanobacteria in the lake are ancient organisms that appeared on Earth 3.5 billion years ago. Surprisingly, except for them in this saturated salt solution no other organic life. The salt concentration in the lake Retba almost 1.5 times more than in the Dead sea – 380 grams per liter. Salt production takes place since 1970.
Now people extract the salt, standing to his neck in water, but 20 years ago the lake was moving without boats, the water level reached the belt. But because mining a huge amount of salt (about 25 thousand tons per year), the depth of the lake was rapidly increasing.
Every morning dozens of local men with the necessary equipment, floating in the middle of the lake and climb in very salty water. They break the salt deposits at the bottom Continue reading
In Italy the water in the largest lake of the country Garda shimmers in the sunlight. The lake serves as a magnet for many tourists, although the Italians have long not bathe in it.
He who rejoices in pure, clear waters of lake Garda, certainly not knows what floating in its depths, he floats in the plastic. Up to 1000 of tiny plastic particles contained in the water of the lake is one square meter.
Plastic everywhere. He is practical, durable and inexpensive. The ideal material. And continue to produce. That’s just the omnipresence of plastic creates a problem. Because this material currently can be found in frightening quantities where least wanted: in the oceans, all the rivers and lakes.
The so-called micro-plastic in the form of subtle particles everywhere in the water. As previously thought, the main consumers are the shellfish, fish and crustaceans, but as recently discovered by scientists – and the man himself.
The artificial particles is greater than zooplankton
Even in products such as honey and beer scientists revealed the presence of microplastics, will soon be investigated, and drinking water. It should be emphasized that this is done only now. Factories continue to produce tons of various synthetic materials. Not surprisingly, Continue reading