Catalog - Tech-Science - They can save global warming with a shield built into space

Catalog – Tech-Science – They can save global warming with a shield built into space

Earth’s climate change, caused by man and/or nature, is sending more and more heat waves that threaten humanity. As artificial international efforts to reduce greenhouse gas emissions sink into gloom, more radical ideas of planet formation are often floated.

Such an idea was also proposed by colleagues at the Massachusetts Institute of Technology (MTI), which would limit the arrival of solar radiation to Earth with a massive structure in space.

Despite droughts, extreme weather events and sea level rise, historical conditions have not brought us any closer to phasing out fossil fuels. Thus, the approach that would achieve the preservation of the habitability of the land in a more active and direct manner seems more and more appropriate.

One such idea was to send a substance that would reflect solar radiation into the upper atmosphere. However, questions have arisen about efficacy in this regard, and its side effects are not entirely expected.

The joint idea of ​​MIT colleagues from different disciplines would solve the problem with a massive structure made of bubbles. The bubble shield will be located at one of the Earth’s gravitational equilibrium points, where it can rotate permanently (as is known, the James Webb Space Telescope is currently operating at one of these Lagrangian points).

Engineers don’t play with beach balls, the shield will be the size of Brazil. Inside the bubbles, at a pressure of 0.0028 atmospheres, it would be as cold as -50 degrees Celsius. Bubbles can be built in space, and smaller prototypes have already been tested in lab conditions. This is where they learn that blowing bubbles is one of the most effective building and shading methods. The correct material is still in doubt, it could be silicon or an ionic liquid charged with graphene. The point is, the spacecraft will take them to the site and blast them there, once a Brazil-sized network has been created to hook them up.

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In addition to efficiency, another useful feature of the bubble shield is safety. Since we are not operating on the surface or in the upper atmosphere, but in outer space, a million kilometers away, there is little chance of causing irreparable damage to the environment. The giant sun umbrella previously proposed in space had the problem of not being able to put it away when it was no longer needed. The advantage of bubbles is that they can be deflated or re-inflated, thus their effect can be eliminated in hours or days, without producing space debris.

The shield doesn’t have to be terribly effective. According to a 1989 study, if we could reduce the energy reaching the planet by 1.8%, it would practically nullify the warming effects.

We believe that a solar shield feasibility study may become important in the coming years if a decision on a planet formation solution becomes urgent.

– said Carlo Rati, head of the MIT Senseable City Lab, which developed the program.

In short, the bubble shield was invented because it might be necessary if the situation really got worse.

Active ideas of planet formation have always been hotly debated. The United nations The Intergovernmental Panel on Climate Change has previously stated that it considers it necessary to have such Type B plans in case the situation becomes unbearable. It’s related to carbon dioxide in the atmosphere, right now Operating plants In practice, they can be considered the first effective technical solutions for planet formation in history.

In view of this, a huge bubble is by no means a far-fetched fantasy, especially if we take into account that they are thinking not only of the development of production and material technology, but also the organization of the international political background for its implementation..

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(DesignAnd the free thinkingAnd the MIT Sensitive City Lab)

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