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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Methane is utilized as fuel and in chemical reactions to produce commercially used chemicals such as carbon tetrachloride, carbon black and as a source of hydrogen. Methane reacts at high temperatures with steam to yield... More » Science Chemistry

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

The most common sources of chlorofluorocarbons are aerosols and leakages from refrigeration equipment, according to the Scottish Environment Protection Agency. Other CFCs are released into the atmosphere by the industrie... More » Science Environmental Science Pollution

Ozone depletion is caused by the discharge of hydrofluorocarbons, chlorofluorocarbons and other ozone-depleting substances that were once commonly used as solvents, refrigerants and insulating foams. The chemicals methyl... More » Science Environmental Science Pollution