evidence: Greenhouse-warming theory, according to the Intergovernmental Panel on Climate Change, posits that greenhouse gases, primarily water vapor (H2O), carbon dioxide (CO2), nitrous oxide (N2O), methane (CH4) and ozone (O3) [...] (5) Greenhouse gases can only reradiate what they absorb. A molecule of carbon dioxide cannot physically emit black-body radiation. It can only emit the spectral lines that it absorbed into its bonds. When these limited spectral lines are absorbed by any body of matter, they would have minuscule effect on temperature of that body of matter because they only make up a very small part of the continuum of frequencies whose amplitudes of oscillation must be increased in order to warm a body of matter. [...] (8) Ångström (1900) shows by two experiments that greenhouse-gas concentrations of carbon dioxide in the atmosphere have minimal effect on air temperature. My experiments show that increasing carbon dioxide concentrations by a factor of more than 23 has no measurable effect on air temperature. Experiments reported on Internet that claim to see greenhouse warming utilize heat sources that are much, much hotter than Earth. More information at JustProveCO2.com.