It's lengthy but very interesting. Edmund has evidently given careful thought to a topic that I haven't really put much thought into and I'm grateful to have his research and conclusions to draw on. If you're short on time, you could just jump to the section on New Church Arguments for a land ethic but, if you have the time, read the other sections because they give useful context and a brief history of the debate and help you understand what he's referring to in the New Church arguments section.
Here's a bit from his introduction to get you started:
Faced with the huge, daunting ecological challenges our technological society has created, what is an appropriate Christian response? More specifically, do the Writings of Emanuel Swedenborg justify developing an intimate relationship with the land that supports us a la “The Land Ethic” so eloquently envisioned by Aldo Leopold--
If you haven't heard of New Church Perspective you could read my post about New Church Perspective.