The best known activities of HRES are its conferences and workshops on subjects of current environmental interest. These programs draw participation from the Hudson Valley region and neighboring states. HRES has organized topical programs on such subjects as:


  • PCB's
  • Acid Rain
  • Dredging and Spoil Disposal
  • The Hudson River Fisheries
  • State Environmental Quality Review Act
  • Freshwater and Tidal Wetlands
  • Toxic and Hazardous Waste Management
  • Coal Conversions
  • Scenic and Historic Area Preservation
  • Energy and the Future
  • Coastal Revitalization and Preservation
  • Cultural Resources
  • Tributaries


Symposia on Hudson River Ecology were organized in 1966 and 1969 by a consortium of institutions and agencies. Since then, HRES has sponsored these symposia periodically and has published the proceedings.



HRES has one of the largest libraries of environmental research reports, impact statements and related material on the Hudson River. Many of these documents were originally prepared for limited distribution and are not easily available elsewhere. Under an arrangement with Marist College in Poughkeepsie, NY, the HRES collection is housed at the college's library and is available to the general public.

HRES also owns a significant collection of HudsonRiver photographs and related materials, primarily of historical interest, which is on permanent loan to the Franklin D. Roosevelt Library at Hyde Park.