|MadSci Network: Physics|
It is fair to say that all forms of man made radiation is insignificant compared to the total energy in the form of radiation that we receive from the sun. Given that almost all of the energy humans use to generate radiation (coal and gas fueled electric power plants, wood burning stoves and fireplaces) comes from a small portion of the sun's energy, converted by photosynthesis to fossil or other burnable fuels. The radiation that is generated by man in the form of microwaves can be kilowatts or megawatts, but even the percentage of the sun's energy (for all wavelengths ) is more on the order of 10 to the 15th power kilowatts. one internet source -- a Harvard astrophysicist --for this discussion states that: "Two conclusions can be drawn about global warming and human energy use: 1. No catastrophic human-made global warming effects can be found in the best measurements of climate that we presently have. 2. The longevity, health, welfare and productivity of humans have improved with the use of fossil fuels for energy, and the resulting human wealth has helped produce environmental improvements beneficial to health as well. " the entire article can be found at http://www.hillsdale.edu/imprimis/2002/march/default.htm
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