We cover Westchester, Rockland and Putnam counties in New York State’s Hudson Valley, just north of New York City. The Sierra Club is America’s earliest grassroots environmental organization, and it’s run by volunteers. We welcome your participation!

The Remarkable Story of Rockland's Water Victory!

water drop photograph

TUESDAY, MAY 3, 7:00 PM, Dominican College, Orangeburg, NY

Come hear Laurie Seeman and Margie Turrin tell the story of Rockland's victory over desalination and describe the exciting process that is now going on to create a new water policy that can be a model for the northeast. Come learn abour your water and your community! Read more.

Clearwater Concert Series to Help "Float the Boat"

sloop Clearwater

Saturday, June 18, 2016 at 7:00 pm: FOR PETE'S SAKE: A Concert for Clearwater. Tarrytown Music Hall, Tarrytown, NY.  Featuring an amazing lineup of talent, including Tom Paxton, Kate Pierson of the B52's, Tom Rush, Holly Near, Willie Nile, Lucy Kaplansky, Peter Yarrow, Tom Chapin, Livingston Taylor, David Amram, Josh White, Jr., and more to be announced soon. Click here for more information.

Harvest Square Dance and Fundraiser!

Saturday, September 10, 2016 at 6:00pm
Faraway Farm, Yorktown, NY

Come to our third annual Harvest Square Dance fundraiser! This year the festivities will benefit both our Sierra Club Lower Hudson Group and SEnRG, the Safe Energy Rights Group fighting natural gas pipelines. Past square dances showed we can put a lot of fun into a fundraiser!

Our caller is Pat Cannon, a pro who knows how to guide even dancers with two left feet! 

The dance will be held at Faraway Farm Alpacas in Yorktown, and we get to meet baby alpacas. Faraway is donating 10% of proceeds from sales during the event to the benefit pot.

Click here for tickets!

Tuckahoe's Toxic Trench

A proposed Brownfield Development in Tuckahoe at the Former Marbledale Road Quarry Dump may cause increased toxic air emissions that pose a health threat to area residents.  Residents of Bronxville,  Eastchester and Yonkers should be concerned, as well as Tuckahoe residents, since the geology of the area may allow the highly contaminated groundwater to flow beyond the Tuckahoe area, and into the Bronx River.  READ MORE...

Meet Our Members on Video

Go Solar and Support Us!

This is a great time to make the switch to solar power. 

When you go solar, you may see an immediate difference in your electric bill, plus you'll be helping the Sierra Club: Sungevity will donate $750 which will support both the Atlantic Chapter (NY state) and the Lower Hudson Group.

Call Sungevity at 844-815-5614 and they'll help you decide if your home is a good candidate for a solar system. Their experts will pick the best spot to install the panels, where they will collect the most sunshine and make your roof look beautiful. 

*Offer valid for new customers only. Offer is non-transferable and cannot be combined with other offers or promotions, or redeemed for cash. A donation of $750 will be made to Sierra Club within 30-90 days of interconnection.