Dust-producing asteroids can combat climate change on Earth

Scientists in Scotland have come up with a solution to create dust clouds around the Earth that block heat radiation from the Sun.

To cope with global warming, scientists in Scotland have come up with a new solution: a machine blowing huge dust in space into an asteroid that surrounds the Earth, acting as a The shield protects the Earth.

There is no truth that it is the Earth that is warming and the climate is changing. Although people want to prevent this phenomenon by reducing the heat of greenhouse gas emissions.

Scientists have come up with a number of arguments aimed at controlling the Earth's climate with large-scale engineering projects, called geotechnics.

Instead of solutions to the ocean or the atmosphere, some researchers have proposed a geotechnical project that can affect the entire Earth from space.

For example, the project to reduce the solar radiation of the Sun to 1.7% of the Earth could regain its balance with global temperatures rising by 2 degrees C. United Nations Intergovernmental Commission on Variable Climate change (IPCC) has noted that global climate temperatures can increase from 1.1 to 6.4 degrees Celsius by the end of the century.

The shield protects the Earth

Researcher Russell Bewick of Strathclyde University in Scothland said: 'Sometimes people come up with the idea that there will be a shield that covers the Earth, completely blocking heat radiation from the Sun.

This is certainly not a theory but a device between the Sun and Earth with the principle of acting as a filter '.

He also added: 'We may need time to find a long-term solution to the problem of climate change.

The dust cloud is not a long-term solution, but it can compensate for the negative effects of climate change in a given time to allow long-term solutions to be effective. '

Illustration of dust cloud surrounding the Earth blocking solar radiation

Researchers at Strathcltde University believe that on an appropriately sized asteroid moving in a suitable position will blow giant dust clouds around the Earth.

They also believe that this small planet will create a gravitational force, so the sprayed dust will be dispersed organically in space.

Previously there was an idea of ​​placing a giant mirror in space to block the Sun's radiation to Earth, but this idea was considered unrealistic because the huge construction cost was too large.

Instead of waiting for a natural cloud of dust to appear in space, the scientists came up with the idea of ​​creating an asteroid that could hold the device to create dust in the space to reduce the sun's heat to the left. Land.

The idea is to place an L1 Lagrange asteroid, the point where gravity of the Sun and Earth annihilate each other. This position is 4 times from Earth to the Moon.

The idea of ​​using dust clouds as a sun's shield of solar radiation influences the Earth.

The cost of this solution will be lower than the way of placing mirrors in space because dust will be dispersed into layers by gravity of the Sun, Moon and other planets.

A spray device is a vehicle that integrates electromagnets that can blow existing matter from the asteroids it is placed on. The device can perform both tasks at the same time as an asteroid boosting rocket to L1 point and create a dust film around it, protecting the Earth.

The researchers calculated that the closest asteroid to Earth, Ganymed 1036 could spray dust clouds large enough to prevent 6.58% of solar heat radiation from affecting the Earth, enough to cope with the hot trend. to global today.

The weight for such a cloud is about 5 million Kg and lasts about 2600km. Ganymed has a mass of about 130 million Kg, this massive size asteroid can make us think of disasters, however it is used to protect the Earth.

Challenge

The challenge of turning this idea into reality is how to push a large-sized asteroid like Ganymed to the point L1.

Scientist Bewich revealed: 'The study calculated that an asteroid could be controlled at a mass of about 500,000 kilograms by 2025, compared to Ganymed's volume, it seems impossible. However, at least this solution does not stop in theory because it is possible to control asteroids to L1 '.

Safety is also a top concern. Bewich said: 'Asteroids are a major threat to the Earth, so controlling asteroids is the most important thing of this idea.'

'These technical challenges will certainly create a lot of controversy about risks. In addition, there is no way to control this dust cloud effectively before putting it into practice , 'added Bewich.

On a global scale, it is difficult to have a method with comprehensive testing capabilities for this model, except for the form of air dilution, but there is still a lack of some large-scale tests.