f CFCs and halons on a global scale. According to Science News magazine report, manufacturers of CFCs and halons are using two methods to develop substitute products that will not be a threat to the ozone layer. One method involves changing the common molecular structure of CFCs by attaching a disruptive hydrogen atom into the stable arrangement of chlorine and fluorine. Because these new molecules are less stable, they break up in the lower atmosphere and are less liable to reach the stratosphere where they can do harm.Some manufacturers or rigid and soft foam products are turning to pentane as a blowing agent instead of CFC. Because of pentane flammability during manufacturing, it requires added fire preventive measures. Pentane is also used in aerosol sprays. When it is mixed with a deodorant or another water-based substance, the hire hazard is eliminated. Variety of businesses that use products manufactured with CFCs, such as foam packaging for foods, have begun to cut back on their purchases of CFC containers. One well-publicized example is McDonald’s. In August 1987, the company announced that it would phase out CFC-produced Styrofoam packaging and use another type of container manufactured without the use of ozone depleting chemicals (Ozone science...).Supporting environmental protection policies is one form of action you can take, but like many others concerned about the fate of the planet, you may wonder about more personal, more direct approaches. Since dry-cleaning solvents release CFCs into the atmosphere, you could buy and wear clothing that is produced from washable fabrics. You can also buy furniture and food that are not made from CFC foam. A home fire extinguisher does not have to contain halons - buy the type filled with a more environmentally safe chemical. If you could join with millions of people across the nation in conservation efforts designed to protect the environment from atmospheric pollutants, fossil ...
