Cape Cod & Islands Group

As part of the Massachusetts Chapter, the Sierra Club's Cape Cod & Islands Group represents members and supporters in Barnstable, Dukes, and Nantucket counties. 

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Presentation: Pleasant Bay and Wellfleet Watershed Management Plans: Analysis and Comparison by 2022 Sierra Cape Cod Intern Kate Connolly  

Sierra Cape Cod "Tuesday Talks"

October 17, 2023: Betty Ludtke, a Barnstable Town Councilor and commercial pilot, and Alex Hatfield, representing Stop Private Jet Expansion, discussing "Hyannis Municipal Airport Expansion: Community/Climate Impacts & Regional Planning Needs"  

September 19, 2023: State Representative Dylan Fernandes on "Community Benefits from Offshore Wind Power: Stabilizing Electric Rates & Decarbonizing the Cape”  

July 18, 2023: State Senator Julian Cyr on PFAS sources, contaminated sites on Cape Cod, and proposed legislation, “An Act to Protect Massachusetts Public Health from PFAS”   

June 20, 2023: Bob Ryley of Habitat for Humanity of Cape Cod presents “Net-Zero Homes & Building Codes: Habitat Cape Cod’s Decarbonization Experience"

May 16, 2023: Tom Cambareri, Sole Source Consulting, and Laurel Schaider, Silent Spring Institute, discussing the science, sources, and solutions for PFAS contamination in Hyannis

April 18, 2023: Andrew Gottlieb, Association to Preserve Cape Cod (APCC), on Holtec’s proposal to discharge radioactive contaminants to Cape Cod Bay 

March 21, 2023: Mark Faherty, science coordinator for Wellfleet Bay Audubon Sanctuary, on threats facing horseshoe crabs and proposed state regulations for protecting local populations

February 21, 2023: Madhavi Venkatesan, executive director of Sustainable Practices, on the ongoing campaign to ban single-use plastic water bottles and foodware

January 17, 2023: Zee Crocker, executive director of Barnstable Clean Water Coalition, on proposed state regulations to accelerate water quality improvement on Cape Cod

December 7, 2022: Mariel Marchand, power supply planner for Cape Light Compact municipal aggregation, on opportunities for greening and cleanup up the local electricity supply mix

News from the Group

Fox 25, Undated, "Machine Gun Rally

WCAI NPR, October 13, 2020 "Environmentalists Rally Against Proposed Machine Gun Range"

Cape Cod Times, October 12, 2020 "Residents gather in Sandwich to protest proposed machine gun range"

Cape Cod Times, October 12, 2020 "Photo Gallery: Residents rally against proposed machine gun range"

The Enterprise, October 12, 2020 "Demonstrators In Sandwich Protest Proposed Machine Gun Range"

Cape Cod Times, October 12, 2020 "Sandwich rally planned to protest machine gun range"

The Sandwich Enterprise, October 11, 2020 "Sierra Club Of Cape Cod To Rally Against Machine Gun Firing Range"

Cape Cod Times, April 23, 2017 "Climate forum gave students real inspiration"

The Sandwich Enterprise, March 21, 2018 "Environmental Groups Decry NRG’s New Unit 3"

Executive Committee and Officers

Please contact with questions or to volunteer with the Cape Cod &Islands Group.

Allyson Schmidt
Allyson Schmidt
In Memoriam

David Dow
David Dow

Diane LeDuc
Diane LeDuc

Keith Lewison
Keith Lewison
Vice Chair

Morgan Peck headshot
Morgan Peck

Chapter ExCom Representative

Chris Powicki
Chris Powicki

Mary Waygan
Mary Waygan



Cape Cod Drilling Protesters Dress to Express (Cape Cod Times 2/27/18)


Brewster’s Christopher Powicki’s bearded face poked out of a plush full-length lobster costume. Kevin O’Brien of Boston was head-to-toe great white shark, and Don Mallinson of East Falmouth wore a cardboard tricorn hat — think homemade “Cheesehead” — with each side bearing an anti-oil and gas drilling message like “Exxon Valdez, Deepwater Horizon, New England.”


Falmouth 2016