Dynamically increase fog effect over time

For a current scene I need to gradually increase my Fog effect levels over time. Does anyone know if this can be accomplished via scripting? Any tutorials or script tips?

Fog is done through the render settings (see link for script referance below) so basically you access it through that class when coding.

RenderSettings.fogDensity = 0.1;

If you are looking to use area fog, I can’t help as I haven’t managed to achieve this yet.