See also:

• Regional: North America: United States: New York: Metro Areas: New York City Metro: Science and Environment  (7)
• Regional: North America: United States: New York: Science and Environment  (14)

• Clearwater Hudson River Sloop - Clearwater conducts environmental education, advocacy programs and celebrations to protect the Hudson River, its tributaries and related bodies of water.
• Healing the Hudson River - An overview of the three-decade-long battle to remove toxic PCB's from the Hudson river, from the Natural Resources Defense Council.
• Hudson River PCBs Site Reassessment Main Page - Hudson River PCBs Superfund Site Reassessment.
• Hudson Valley Biodiesel Cooperative - Yahoo group whose goal is to escalate the advancement of biodiesel technology in the Hudson Valley region by providing a focal-point and interactive forum for education and communication.
• Scenic Hudson - A non-profit organization dedicated to protecting and restoring the Hudson River and the Hudson River Valley of New York State.