“Out of the entire atmospheric makeup, only one to two percent is made up of greenhouse gases with the majority being nitrogen (about 78 percent) and oxygen (about 21 percent). Of that two percent, “planet-killing” carbon dioxide comprises only 3.62 percent while water vapor encompasses 95 percent. And of the amount of carbon dioxide in the atmosphere, humans cause only 3.4 percent of annual CO2 emissions. The cause for concern is that carbon dioxide emitted from burning fossil fuels trap heat from the sun, and as the atmosphere heats, it holds more water vapor, produces thinner clouds and increases the temperature. Climate models predict this positive feedback mechanism is what will eventually doom planet earth.”

Read more at Carbon Dioxide Regulations Display EPA’s Arrogance » The Foundry