ANS protects land and water through policy and advocacy. Check out our current campaigns, letters & testimony, and opportunities to TAKE ACTION on our Conservation Blog:


Preventing Polluted Runoff: ANS works with Montgomery, Prince George’s, and Fairfax Counties, as well as DC, to help them develop and implement their plans for preventing polluted runoff.

In coalition with a broad network of partner organizations, we meet with the environmental agencies in each jurisdiction, advise them on how to meet their Clean Water Act permits, and help them design their programs to best reach neighborhoods and communities. We also meet with and work to influence state- and federal-level decision makers in agencies and the legislatures to improve the laws and policies that govern how development is managed!


Campaigning for Conservation Victories: ANS has a storied history as the oldest conservation organization in the Washington, DC region.

Today, we continue that tradition of advocacy by focusing on protecting the land and water of our local region.

We helped pass the Montgomery County pesticide lawn ban bill, advocated for transit-oriented development around Tyson’s Corner and, most recently, helped lead the coalition to Save Ten Mile Creek. Now we are keeping a close eye on the proposed Purple Line in Montgomery and Prince George’s Counties to ensure that it meets stringent county standards for managing polluted runoff into streams—if it gets built, it should be a Deep Green Purple Line.

ANS also protects land and water through community science, and by training people to be advocates and stewards for clean water.

RSS Recent Posts on the Conservation Blog

  • Woodend Restoration Watch: Tulip Tree Edition March 21, 2019
    The forest at Woodend is a young one.  It is not dominated by oaks and hickories like older growth forests in our region.  Rather, the most common tree in our woods is Liriodendron tulipifera, a fast-growing, light-loving early successional species.  The triple-trunked specimen by our pond may be the oldest … Continue reading
    Bradley Simpson
  • Nature: #TheForgottenSolution to Fight Climate Change March 13, 2019
    Continue reading
    Eliza Cava
  • Salty Talk March 6, 2019
    Guest Post by Barbara Collier, ANS member Winter is the time of year when we start thinking more about salt—not the stuff in our kitchens, but the salt on our roads and paved surfaces. Some of us worry about it getting onto our shoes and staining them and drying out the … Continue reading
    ANS Conservation Volunteer