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DISCUSSION

Radiative forcing is a measure of the influence a factor has in altering the balance of incoming and outgoing energy in the Earth-atmosphere system, often stated relative to preindustrial conditions (ie, the year 1750). 2 Halogenated organic compounds are an important category of greenhouse gases and are responsible for approximately 10% to 15% of the radiative forcing of climate change by long-lived greenhouse gases. 2 Greenhouse gases are compounds that have a significant atmospheric lifetime, and possess infrared absorption bands that overlap with the outgoing radiation from the Earth's lower atmosphere. Gases that absorb strongly in the atmospheric window, the spectral region between approximately 8 to 14 μm (714–1250 cm− 1) in the Earth's infrared emission spectrum where absorption by the naturally occurring greenhouse gases is relatively minor, are particularly effective at …