The Montreal Protocol is a 1987 treaty between U.N.-recognized nations to phase out the use of ozone-depleting chemicals, such as chlorofluorocarbons, carbon tetrachloride and methyl chloroform. The treaty was then amend... More » Science Environmental Science Pollution

Air pollution can be reduced both inside and outside the home by avoiding the use of chemicals or not allowing a car to idle. Air pollution is caused by the deposits of harmful gases into the atmosphere that include carb... More » Science Environmental Science Pollution

Although there are many different ways to keep the environment clean, some useful tips include avoiding the use of harmful pesticides and cleaning chemicals in the home, reducing carbon footprints and recycling different... More » Science Environmental Science Pollution
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Solutions to prevent depletion of the ozone layer involve banning the use of chemicals that cause ozone depletion, such as chlorofluorocarbons and hydrofluorocarbons. National laws and international treaties help acceler... More » Science Environmental Science Sustainability

Individuals can prevent ozone depletion by not using products that contain chlorofluorocarbons, or CFCs, hydrofluorocarbons, or HCFCs, and other human-made substances that destroy ozone molecules. Additionally, governmen... More » Science Environmental Science Pollution

The main causes of air pollution include the emission of greenhouse gases, such as carbon dioxide, methane, and chlorofluorocarbons, emission from volcanic eruptions and toxic air pollutants emitted by vehicles. The amou... More » Science Environmental Science Pollution