A method called the stratospheric spiral injection (SAI) could reduce the degree of global warming by half, saying scientists' research at the universities of Harvard and Iale. His opinion would include to & # 39; Spreading many sulfate sizes in the lower Earth stratosphere at altitudes of up to 20 kilometers.
Scientists say they would screen the sulphates with pancakes or planes designed to reach a high cannon or a great naval style. However, they have let them know that the approach, to date, is undoubtedly. There is no appropriate technology or plane to do this test, but the team says that the system could be created within 15 years.
The cost of the UPS system has been launched at 3.5 billion dollars (USD) with operating costs of USD 2.25 billion per annum.
The report agrees that it is a shameful use but is capable of creating.
We do not judge the suitability of the UPS. We just have to show that there is an up-to-date inspiration program. Beginning at the age of 15, although he is very uncertain and ambitious, technically possible from an engineering perspective. It would also be very cheap.
The team recognizes that there would be a major risk to the system, as it would be necessary to co-ordinate between many countries in each department. In addition, they say that the SAIs could cause a risk to agriculture, causing or causing bad weather.
Dr. Gergot Wagner, from Harvard University's Engineering School and co-author of the survey:
Given the potential advantages of reducing the increase that is & # 39; Expects to strengthen radiative from a special date, these numbers want a spectacular geological economy. Funds of countries can fund such a program, and the technology required is not particularly stunning.
The recommendations do not also handle the & # 39; The issue of larger greenhouse gas emissions, which is one of the main causes of global warming.
The voices of the face
Philippe Thalmann, of École Polytechnique Fédérale de Lausanne, an economist in climate change economics, said the system would be very expensive and very dangerous in the long run.
David Archer, from the geophysical sciences department at the University of Chicago, said:
The problem with an engineering climate in this way is that it is a temporary terminal aid; It's just a trouble cover that will last forever. It is likely to continue to improve the cleanliness of our energy system, but we would; leaving his planet in a life support form. If there is no future generation to pay; their climate bill, they would all get our heat at the same time.
The government has not agreed with any government or authority, and further investigation would need to verify its validity.
The research findings were published in the scientific magazine Environmental Research Letters.