“The addition of certain chemicals to the atmosphere will destroy wavelengths of light and it may only be a matter of time before one of these wavelengths of light that is critical for human survival is eliminated. This is called: The Extinction Wavelength” MatterLightCertainTimeSurvivalHumanCriticalAtmosphereChemicalsExtinctionSpectrumDestroyWavelengthAdditionWavelengthsEliminated Book:Solar Radiation, Global Warming and Human Disease Source: Solar Radiation, Global Warming and Human Disease