Sierra Club Climate action YOUTH summit will be occurring on 4/26/2025. Please sign up using the link below and we look forward to see...

Our upcoming events are, as follows: Thursday, December 12, 2024, 6:30pm Birds and Butterflies-Bob Labuski, nature photographer, Bob was...

Please join Sierra Club LI for volunteer event: What: weeding invasives When: Saturday, October 12, 2024, 10-12* Where: Bayard Cutting...

Want to get involved with citizen science?  Now you can.   Projects to track, count, mark, protect and document diamondback terrapins (a...

There are three meetings for members and non-members of the LI Sierra Club for all to attend who would like to. Meetings are held in...