Canfei Nesharim, the Orthodox Jewish environmental group, is having their 3rd annual shabbaton coming up in a month on March 10-12 in Hillside, NJ. It's entitled "Spring Forward in Hillside: A Fresh Look at the Environment through the Lens of Halacha". I'm thinking of going again (I attended last year's in Maryland). More information can be found here.
Tags: shabbaton, environmental, Orthodox