With the ban on CFCs came a promise to phase out other ' greenhouse gases ', halogenated hydrocarbons (HCFCs ).
The action taken to phase out UK materials for surgical sutures is set out in vol.
Sony also has specific phase out plans for PVC and has eliminated brominated flame retardants in some products.
The 2007 Energy Law mandates that by 2012 retailers complete the phase-out of the incandescent 100-watt bulb.
Print-based learning may continue to phase out as time goes on, but as long as Internet access is prohibited or limited in some areas and enough students maintain a demand, these original educational methods will remain useful and relevant.