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Search Results for air quality

Arctic Ozone Depletion Reached Record Level

Depletion of the ozone layer, ­the shield that protects life on Earth from harmful levels of ultraviolet radiation, reached an unprecedented level over large parts of the Arctic this spring. This phenomenon was caused by the continuing presence of ozone­-depleting substances…

Waste Glass in a Whole New Ballgame

Recycling raw materials mostly have limited use, especially when it comes to glass. Although it is generally thought that new glass products, which are of the same structure (such as jars, bottles, cups, etc.) are obtained from waste glass packaging,…

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