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Climate: Tropical monsoon climate. From November to March the humidity reaches 95% at a temperature of 30ş - it can adversely affect people with poor health; it is recommended to…

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Canada. Geographical position of Canada - Articles on 100 roads
Canada is on the North American continent, from the South it borders with the United States, with the North lie 800 km beyond the Arctic Circle. The country is washed…

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UNIQUE LAKE ABRAHAM. Discussion on LiveInternet – Russian Service Online Diaries

Stunning lake Abraham, located in Alberta, Canada. It looks incredibly calm and picturesque, in spite of the fact that something threatening and explosive hidden under the surface. A clear bluish-white elements of combustible gas-methane, resembling cotton wool of education – in fact frozen in an ice trap lake. In the spring the lake thaws, the bubbles break free and rise to the top, after which lurk in the atmosphere.

The methane in this lake is formed due to bacterial decomposition of organic substances that occur in water, including: plants, leaves, trees, and animals that died and fell into the lake. At the bottom, after the destruction of the bacteria creates methane, which seeks to break out.

In addition to the processes described above, an artificial lake floods the land – so that the water covers the existing vegetation and soil and contributes to their degradation. This process is accelerated by sewage farms near.

When Abraham lake is frozen, the accumulation of methane are trapped and takes the form of a white substance known as methane hydrate. As soon as the thaw, the methane is released from the trap and comes to the surface.

This process occurs not only in the lake Abraham, but also in many lakes of the Arctic region. Methane is a powerful greenhouse gas that has 20 times more effect on climate than the same amount of carbon dioxide, over a 100-year period.

To prove that the gas released from the lake-methane, ecologists from the University of Alaska Fairbanks conducted a series of experiments, one of which went as follows: researcher poured warm water on the ice, and then used the tool to create the hole, then set fire to the formed hole. As a result, the gas escaping from the ice – burned.

Unique frozen lake Abraham attracts many tourists and photographers, but even knowing that ice thickness 8-10 see it is very difficult to walk on its area.