Specialists from Harvard University are planning to conduct an experiment to spray special substances to cool the earth's atmosphere.
The experiment will be conducted on a small scale first. A controlled balloon will rise into the stratosphere, from which about 100 grams of calcium carbonate will be sprayed. It was this substance that was chosen for the experiment, since calcium carbonate particles can be suspended for a very long time.
Scientists will then use a laser to determine how well these particles scatter sunlight. Experts use the information obtained to model the process and scale it to larger volumes of matter sprayed into the atmosphere.
This idea has many critics. The main leitmotif of opponents of "aerosol cooling" is that scientists are trying to influence the symptoms of global warming in this way instead of its main cause - the emission of greenhouse gases into the atmosphere.
In addition, such a decision will be very expensive: according to environmentalists, the implementation of such a project will cost about $ 2-2.5 billion a year. But Harvard scientists argue that such events could delay the climate catastrophe and give scientists time to find a more effective solution to the problem.