Nov 23, 2018 10:08 AM IST
Spreading from the sun-blazing chemicals that is high above the earth is to be able to sleep the global warmth, can be "noticeably good, cost as $ 2.25 billion in & quot; a year about a 15-year period, according to a study of American scientists.
Some researchers say that geo-engineering techniques known as stratospheric aerosol injection (SAI) can limit limiting temperatures that cause climate change.
Still unproven and hypothetical would be the use of large runners, cannons or special-indicated aircraft for large sulfo particles in the supernatant of & nbsp; to spray the atmosphere to act as a reflective barrier to central issues.
The total cost to begin a hypothetical SAI training 15 years from now would be $ 3.5 billion, scientists at the Harvard University say in a report published in the magazine Research Papers, added that annual operating costs such as $ 2.25 billion in # would be over 15 years.
Expanding other methods of deployment through cost and utility, the study can explore a special aircraft to fly at a height of 20 kms carrying a load of 25 ton.
After direct input from various aerospace and motor companies, scientists have said they have developed a design that is possible and can be completed in 15 years so that the temperature in driving speed is reduced. half to be cut.
The scientists consider this a simple hypothetical scenario.
"We do not make any sense of the desirability of SAI, but let's just see that a hypothetical development program begins 15 years later, while both are very uncertain and ambitious, possibly an engineer's perspective, and may be cheaper," said the report.
There are risks for such unproven potential technologists. Scientists have said that SAI can cause negative negative consequences such as caused drugs or extreme weather in other parts of the world, damage recreation or potential public health and administrative problems.
It does not, however, the problem of the emerging nucleation emissions, the most important gas vane of # 39; the glove for global warming.
Note on the study, Phil Williamson at East Anglia University said: "And scarves are fed with problems – and international agreement to deal with such action would be near-impossible realization. "