Global warming, nuclear winter or natural climate variability?

January 18, 2013. 36th year Streak global average temperature higher than normal. The last 2012 year ? not the exception, he continued this trend, closing the top ten warmest climate in the rankings. According to U.S. meteorologists, the average temperature the planet was 14.6 Celsius, 0.6 degrees above the average for the XX century.

In particular, the United States experienced the warmest year on record.

Most scientists believe that the increase in global average temperatures and increased frequency of extreme weather events is due to the high intensity of industrial emissions of carbon dioxide and other greenhouse gases that trap heat in the atmosphere.

In their view, this confirms the global average temperature, which since 1880 has increased by 0.8 degrees. In addition, the more intense the temperature increase occurred during the industrial revolution. Since 1976, every year on the planet was getting warmer. Only one year in the last century, in 1998, was warmer than in 2013.

Skeptical climatologists part uses a comparison with the year 1998 as an argument in favor of the fact that global warming has stopped. In their view, the use of brute force in industrial emissions of developing countries creates the opposite effect, well known as nuclear winter, when dense aerosol veil reflects and scatters the sun's heat.

But there is a third group of scholars who argue that the rise in temperature is not directly linked to the consumption of fossil fuels by mankind. Over the last century the consumption of carbon-growing all the time, while the temperature fluctuations were clearly cyclical. According to them, in the nature of the climate machine works, which involved a huge number of processes, ranging from the main source of energy? Sun.

The centuries-old history shows that it is balanced, perfectly working machine. And as long as mankind can not influence it. That is, the ratio of natural and anthropogenic processes are not comparable.

The natural cyclical variations in climate is well traced by well-studied example of alpine glaciers, which advanced to the 10's and 60's of last century. Thus, in their strong opinion, variations in climate are natural cyclical. And all the apocalyptic predictions are without scientific basis.

Source: News Gismeteo

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