Rails - Jan 2006 - How to see what environment variables are set via code in the rails app?

Hi,

This is a newbie question since I am a newbie:)

Is there a way to determine the environment of the rails app in a 
controller and see the values of the different env variables?

[Note: ActionController::AbstractRequest has a env method which is 
available both in production and test Request objects. ]

Thanks,