What is the “chemical sunset” of the Sun and why is it dangerous?

If several large volcanoes on Earth start erupting at once, can ashes rise to the air and extinguish the Sun and influence climate change? Scientists from developing countries asked this question.
Researchers are modeling how the ash from several volcanic eruptions affects the Earth’s penetration of sunlight – this is the “chemical sunset”. A large-scale study was launched after the signing of the Paris Agreement – a document regulating measures to reduce carbon dioxide in the atmosphere. Scientists have already come up with a sound name for this solution – solar geoengineering.
“Although the idea itself is quite crazy, it is already taking root in the scientific world,” says lead author Atik Rahman. The construction of the model will make it possible to understand whether it is worthwhile to develop projects for the artificial muffling of sunlight. For example, the idea of ​​atomizing sulfur particles in the atmosphere, which should scatter sunlight, has been discussed for a long time already.
A similar method of solving the problem of global warming has found support among the powerful of this world. According to the Daily Mail, the fund of Dustin Moskovitsa, co-owner of Facebook, has allocated scientists $ 400,000. However, experts of the UN group on climate refer to the implementation of the “chemical sunset” project skeptical, calling it “economically, socially and organizationally impossible.”

Planet Today

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