Welcome to the Sierra Club, the nation's oldest and most effective grassroots environmental organization. Here in Massachusetts, your local Chapter has an over 40-year legacy of protecting the environment with successful legislative, advocacy, and educational campaigns. Please explore our website to find out what we're working on, and how you can get involved to protect the Commonwealth’s natural resources.

With over 50,000 members and supporters in Massachusetts, most likely your friends and neighbors are already Sierra Club members. Our strength is in our numbers so please become a member or renew your membership today.  Please also consider volunteering – from making calls to writing letters to visiting legislators there is something for everyone, and every voice is critical.