CLAD - Critical Loads Ad Hoc Subcommittee

In July 2006, the NADP Executive committee formed the Critical Loads Ad Hoc Subcommittee (CLAD). The purpose of CLAD is to discuss current and emerging issues regarding the science and use of critical loads for effects of atmospheric deposition on ecosystems in the United States.

CLAD meets twice yearly at the spring and fall NADP meetings, and welcomes all NADP participants and interested parties. The goals of CLAD are to:

  • Facilitate technical information sharing on critical loads topics within a broad multi-agency/entity audience;
  • Fill gaps in critical loads development in the US;
  • Provide consistency in development and use of critical loads in the US;
  • Promote understanding of critical loads approaches through development of outreach and communications materials.

For more information about critical loads and CLAD, please see the brochure Critical Loads - Evaluating the Effects of Airborne Pollutants on Terrestrial and Aquatic Ecosystems (PDF, 1.6 MB)

CLAD Events

  • A Critical Loads Modeling Workshop will be taking place at the NADP fall Science Symposium in Saratoga Springs, NY. Contact Jason Lynch for more information
  • An International Workshop on Nitrogen Deposition, Critical Loads and Biodiversity is scheduled for November, 2009 in Edinburgh, Scotland. http://initrogen.org/144.0.html)

CLAD-Sponsored Projects

  • Multi-Agency Regional-Scale Critical Loads Research and Modeling projects (contact Richard Haeuber)
  • U.S. Critical Loads Focal Center Pilot project (FOCUS) (contact Tamara Blett