2011 — one of the hottest in history

2011 — one of the hottest in the history of weather and climate

Goddard Institute for Space Studies in New York, has published comparative data Temperature XX and XXI centuries. According to studies, the average temperature around the world reached record levels in 1880, finishing 9th. The temperature was 0.51 degrees Celsius higher than in the mid XX century.

Scientists claim that the planet is getting more energy than it gives, and this leads to higher temperatures. Even with the existing strengths of the cooling process due to this phenomenon, as La Niña, as well as the weakening of solar activity in recent years, in 2011 entered the 10 hottest years in history. In comparison with 2010 temperature readings increased by 0.12 degrees Celsius. This, however, does not mean that the temperature will rise evenly, although the total increase is expected. Temperature readings in the XXI century, obviously higher than in the middle and the end of the XX century, except in 1998, which entered the top 10 hottest years.

These temperature readings began to gather in 1880. With the increase in the 1970's greenhouse effect on the production of energy, industry and transport temperature increased significantly. In the animation depicting temperature changes from 1880 to 2011, red the temperatures are above average, and blue — below the average of 1951-1980 years. Goddard Institute for Space Research uses data from more than 1,000 meteorological stations around the world, satellite observations of sea surface temperatures in and data from research stations in Antarctica. The scientists calculated the difference between surface temperature in a given month and the average temperature in these areas between 1951 and 1980 (this period is used as the initial criterion for comparisons).

Higher temperatures due to an increase in carbon dioxide concentration in the atmosphere that absorbs infrared radiation emitted by the Earth, and allows the energy to penetrate the space. Hence, the delayed energy in the atmosphere leads to an increase in temperature. Carbon dioxide in the atmosphere in 1880 was 285 ppm, in 1960 — 315 ppm, and in 2011 — more than 390 ppm.

Nine of the ten hottest years since 1880 occurring after 2000. Scientists believe that in the next 2-3 years, we can expect a new record temperature at the increasing activity of the sun and the phenomenon of El Niño, contributing to higher temperatures in the Pacific Ocean.

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