Atmospheric pollution hits record

12.05.2013


Photo: ITAR-TASS

In the Earth's atmosphere has accumulated a record amount of carbon dioxide. To such conclusion the American scientists from the National Oceanic and Atmospheric Administration of the United States (NOAA), RIA "Novosti".


NOAA station in Hawaii recorded content in the atmosphere of the 400 millionth fraction of carbon dioxide, or 400 ml per cubic meter of air, which is the highest figure on record (since 1958). "This growth is not a surprise to scientists. There is strong evidence to suggest that the sharp rise in global carbon dioxide emissions from coal, oil and natural gas results in the acceleration (increase in concentration)," — said a senior researcher at the NOAA Pieter Tans.

According to scientists, in the middle of the XIX century. concentration of carbon dioxide in the atmosphere was about 280 ppm. By the 1980's. It was for 350 shares. The estimated level of interest 450 will be reached even faster. According to the BBC, in the distant past, such a high concentration of carbon dioxide in the atmosphere is also mentioned, but that was before the appearance of man, about four million years ago.

"You can not prevent the carbon dioxide concentration to reach 400 ppm. This is already an accomplished fact. But what will happen next, it is still important for the climate, and we can not control it. This depends on how much we rely in the future on fossil energy sources "- said the researcher geochemist at the Scripps Institution of Oceanography Ralph Keeling.

Carbon dioxide is essential for the very existence of life on Earth — it is used by plants during photosynthesis. At the same time, an increase in its concentration in the atmosphere leads to the greenhouse effect and global temperature increase, which has both positive and negative effects varied.
 

Roman KARPINSKOGO

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