Electronic visual display equipment emits low levels of radiation. Although the LCD monitor emits lower levels than older cathode ray tube (CRT) designs, these low levels can negatively impact human health. Over-exposure to electromagnetic fields above two milligauss (mG) generated by electronic components inside a computer and radiation from LCD monitors can expose users to a variety of health maladies such as muscle ache, insomnia and fatigue. Prolonged exposure may also cause cancer in humans and animals. Burning eyes and headaches can result from increased luminescence or brightness of LCD displays. Radiation exposure above levels of 2 mG can cause skin burns and dry, wrinkled skin. LCDs also provide inconsistent photometric measures, depending on the angle at which a user is viewing the LCD monitor. This can contribute to improper body posture and back pains. Electricity consumed by LCD manufacture and use contributes to the release of so-called greenhouse gases (Co2) into the environment.