Welcome to Princeton Theological Seminary’s online source for all things Green. PTS is commited to theologically informed leadership with respect to the ecological responsibility we bear toward both God and neighbor. “Sustainability” at PTS is a division of the Housing and Auxiliary Services Office, but we concern ourselves with much more than housing. We work closely with the student groups and our initiatives touch every aspect of life here at PTS.


  • A solar array on the new library
  • Geothermal heating in the Charollotte Rachel Wilson campus
  • Back of house composting in Mackay dining hall
  • Community run garden and composting
  • Single stream recycling across campus
  • Porous asphalt helps reduce storm runoff


Composting is a student organized and run program at the Witherspoon-Charlotte Rachel Wilson apartments. Individuals and families are encouraged to compost non-meat food scraps in their apartments. Drop-off locations are provided near the apartments (see below), or you can take a nice walk out to the garden and take your scraps to the source.

Click Here for More Composting Info

Fruit and Vegetable Scrap Drop-Off Locations

Compost drop-off map Witherspoon-CRW


The Witherspoon-Charlotte Rachel Wilson apartments have easy access to our campus community garden. The garden is student run with the support of Housing and Auxiliary Services and the Administration. Over thirty families and individuals participate at various levels in this raised be garden, from small 4'x4' plots to multiple 4'x8' ones.

Tiger Transit Frequent Rider Program

Save money, save the planet, and you could win! 

Use the Tiger Transit bus service to commute from Witherspoon-Charlotte Rachel Wilson Apartments to main campus and you could be entered to win a gift card in the monthly drawing. Simply present a Frequent Rider Card to a Tiger Transit bus driver each time you exit the bus and they'll punch your card. The cards will only be punched on the West Extended Line. After the 10th punch, turn in your card to the Housing Office and you'll be entered in the monthly drawing. There's no limit to how many times you can enter each month, so the more you ride the better your odds! Examples of the raffle prizes include a gift card to Whole Foods, local stores, and Princeton area restaurants. 

You'll save yourself money, and reduce your carbon footprint in the process. You can pick up a punch card in the Housing Office or look for the posters around campus.

Facts about Tiger Transit


  • Tiger Transit bus service is managed by Princeton University bus and is provided to the entire Seminary community at no additional cost to students.
  • Buses are fully accessible and have bike racks.
  • The Tiger Transit bus fleet is fueled by B20 biodiesel.



Recycling & Waste

Coming soon.