Scientists: any attempt to cool the planet with aerosols will end in disaster

© AP Photo / Manish SwarupМужчина on the dam dried Manjara Dam in India. 2016Scientists: any attempt to cool the planet with aerosols will end in disaster© AP Photo / Manish Swarup

. Attempt to cool the planet by means of artificial analogues of the emissions of volcanoes would lead to more frequent hurricanes in the tropics to other disastrous consequences, say scientists in an article published in the journal Nature Communications.

«The results of our calculations show that the solar geoengineering in a local or global scale is an extremely risky strategy to combat global warming – in some regions it will lead to the desired consequences, while others will cause a crash. It is necessary that the legislators have begun to take seriously this issue and introduced the corresponding limits on such techniques,» said Anthony Jones (Anthony Jones) from the University of Exeter (UK).

It is believed that aerosols are microscopic droplets of liquid substances and solid particles reflect part of the sunlight and contribute to condensation in clouds, which significantly «cool» the planet. Scientists believe that a large part of the aerosol is formed through two processes: volcanic eruptions and reactions between vapors of ammonia and sulfuric acid in the lower atmosphere.

As recent climate research, a sharp increase in the concentration of aerosols in the atmosphere in the last 10-15 years is one of the reasons why global warming is some slowed down their move in 2000. Therefore, many scientists today think seriously about how to begin to artificially seed the atmosphere with aerosols to further slow the warming.

In recent years, scientists have begun to doubt – our calculations show that the volcanic aerosols not only cool the planet, but also to accelerate the melting of glaciers and cause other dangerous side effects that can cause more harm than good. Jones and his colleagues tried to evaluate their strength using a computer model of the upper atmosphere of the Earth.

As shown by these calculations, the «seeding» of the stratosphere a large number of aerosols will lead to absolutely different consequences for the Northern and southern hemisphere. For example, the frequency of heavy storms and whirlwinds in the Northern tropics, according to climatologists, will fall significantly, down approximately 20-25%, whereas in the South they will begin to take 50-75% more often when adding to the atmosphere the same number of particles.

And that, and the other option is negative. In the first case, the decrease in the intensity of hurricanes and whirlwinds will lead to increased droughts in desert regions of Africa and Asia, and strengthening of typhoons and cyclones in the Pacific and Indian ocean will make the lives of the inhabitants of the Islands and coast of Asia, Australia and Africa even more difficult than it is today. In other words, any unilateral attempt to cool the Earth by residents of a country of southern or Northern hemisphere will cause negative consequences for the inhabitants of the second half of the planet.

The strength of these effects, as the researchers note, will be such that even attempts to keep the growth temperature at around 1.5 degrees Celsius and not lower them will lead to negative consequences. All this, according to Jones and his colleagues should force scientists and officials to relate to such projects and initiatives with extreme caution.

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