What’s the best undergraduate environmental econ textbook?  Constraints:

1. It has to be engaging enough to hold the attention of someone who isn’t taking an environmental econ course.

2. It should have decent empirics on the cost-savings of taxes and tradable permits over direct regulation.

Update: Matthew Kahn’s shameless self-promotion of his Fundamentals of Environmental and Urban Economics has won me over.  A steal at $1.