Solar radiation management

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Solar radiation management is geoengineering which attempts to reduce the amount of light and heat that affects a planet. The basic technique is to disperse an opaque or reflective dust, or mirror, in the upper atmosphere. This occurs naturally when large volcanic eruptions throw large volumes of volcanic ash and sulphur compounds up.

Intercepting solar radiation does not reduce greenhouse gases, but, also, is neither permanent nor very expensive.

It is important that any technique or material used does not aggravate Ozone depletion.

Further reading