Will CO2 absorb photon in all directions? Let's look at the situation of the greenhouse gas CO2 and the wavelength of Infra Red light (IR) that it takes up. From that wavelength we should be able to work out the energy that is transferred to the molecule. Is there a velocity of the CO2 if it is contrary to the direction of the energy in the photon that will preclude absorption, the reason being that there is no way the two can interact and result in conservation of momentum and conservation of energy? These are the issues will be explored to find the science and maths needed to understand what scientific principles have to be considered. Please Register or Log in to view the hidden image!