Radiative heat transfer can be filtered to pass only a definite band of radiative frequencies. Indirect effects of aerosols are the largest uncertainty in radiative forcing. Polar stratospheric clouds have a great impact on radiative forcing. It affects both short and longwave radiation to produce a net negative radiative forcing. The overlying atmosphere is in radiative equilibrium. Neutron transport is a type of radiative transport. One may imagine two such cavities, each in its own isolated radiative and thermodynamic equilibrium. Most of the radiative flux from Proxima Centauri is in the infrared spectrum. The exact reverse of radiative recombination is light absorption. The equation of radiative transfer describes these interactions mathematically. The modified running also provides a natural mechanism for radiative electroweak symmetry breaking. Climate sensitivity is the amount of warming per radiative forcing. Free-convection rates are comparable, albeit somewhat lower, than radiative rates. It is a spontaneous process of radiative distribution of entropy. The decline in CFCs considerably tempered the increase in net radiative forcing.