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They hope this will have an effect similar to the effects of a volcanic eruption that emits sulfur dioxide. In 1991, the Pinatubo volcano in the Philippines released 20 million tons of sulfur dioxide in the atmosphere. This cooled the planet by 0.5 degrees Celsius for 18 months. The objective of the experiment is to evaluate the possibility of reducing the worst climate change options in the hope that it will save coral reefs and prevent the melting of polar ice.
Scientists will launch an airborne probe in the southwestern United States until July of next year. Calcium carbonate – the gypsum powder will be emitted from it in the atmosphere. Scientists will measure how this will affect the action of sunlight. Opponents of the experiment argue that the dispersion of particles in this way can damage the ozone layer and disrupt the precipitation structure, which can cause drought in some areas. They say that such geoengineering distracts attention from reducing greenhouse gas emissions.