The marvelously named “Friends of The Pleistocene” and Smudge Studio are working on a geological guide to the city’s building materials as a way to show how geological time very much intersects with human time. The work is called Geologic City: A Field Guide to the GeoArchitecture of New York and I’m really looking forward to it (as I pass by the guys mixing a little crushed Triassic into the sand in preparation of painting the brownstone brown).
The NYC BiodiverCITY blog pulls together submissions from thoughout the city on our biodiversity, to make the point that the revision of Bloomberg’s PlanNYC needs to take this wealth of plant and animal life into account. I’ve already contributed. Have you?
Some housekeeping: I’ve recently added some NYC bird lists and other blogs and sites to my blogroll. Check them out.
Also, I encourage you to subscribe to this blog and link to it as well as Digging/Tweeting/Stumbling/MyFacespacebooking and otherwise sharing it if you enjoy it. Comments are always welcome.
Backyard and Beyond 
Thanks for the links to both terrific projects. Glad you posted yr muskrat sighting with NYC BioDiverCITY.