Thursday , May 26 2022

Injecting sunblock chemicals into the atmosphere to reduce global temperature increase in half, scientists say



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Spray chemicals to the atmosphere to prevent sunlight break global temperature increase in the half without any dangerous effects, Harvard scientists have suggested.

Solar geoengineering has long been bloomed as a possible means of tackling global warming, but many are concerned about its potential for unnecessary side effects.

Injecting aerosols in the air can be extraordinarily even aggravating climate problems by interfere with rain in some regions.

But with increasing concern about the devastating impact of climate change, experiments are already in the process to establish how effective such techniques could be.

In a new study, the research team used computer models in an attempt to measure the perfect "dose" geoengineering that would slow down heat without doing anything.

Although the scientists recognize that there is still a lot of uncertainty about this dramatic intervention, it was suggested that this could lead to significant benefits overall.

"The analogy is not perfect but the geoengineering of the sun is like a drug that is treating a high blood pressure," said Dr Peter Irvine, who led the study.

"Overdose would be harmful, but a well-chosen dose could reduce your risks."

Although Dr Irvine has indicated that "better not to have high blood pressure in the first place", once the problem was in hand, he said it was definitely worth considering the options.

Experts have warned, to avoid the worst effects of climate change, greenhouse gas emissions have to halve between now and 2030 – a target that the world is not on track to hit .

Dr Irvine noted his colleagues investigating how effective a limited geoengieering program, as well as emissions cuttings could be effective.

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They concluded that using such techniques to halve warming would not only be cool in the planet but also help to cut some of the extreme weather effects associated with it. heated, such as hurricanes increasing in intensity.

In this situation, researchers found that only 0.5 per cent of land would see the effects of a potentially damaging climate if the intervention was.

"Major uncertainty continues, but climate models suggest that geoengineering could enable the benefits of surprise in uniform," said Professor David Keith, who was the study author.

The research was published in the magazine Nature of Climate Change.

Another study that tried to measure the far-reaching effects of solar geoengineering announced last year could be "extremely cheap" if the current aircraft were adapted to discharge the aerospace to the air.

However, other research has warned that such efforts could harm global agriculture, and concentrating on such great solutions is to highlight the serious business of cutting off emissions.

So far, the attempts to test the principles have been moderate. Professor Keith is part of a group that launches a balloon to mimic a large volcanic blast by spraying a 12 mile chalk dust above the Earth in a small-scale test of the feasibility of the technique.

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