cinemaman

I apologize if this has been covered previously. I am generally interested in environmental and resource economics, but I feel like I would be happy in a regular Econ program or a forestry ( natural resorces - economics & policy) program. If a school has all three, is it bad to apply to all three? I am worried that they may see this as a lack of committment. Am I being paranoid? Will the individual departments even know that I have applied to other programs?