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Upcoming Webinars

A partnership between the RMC and NRC in delivering innovative programming to those who are seeking integrated opportunities for materials management. 

The monthly programming Series is provided through live webinar format on the third Tuesday of each month from 1:30pm to 2:45pm EDT. Recordings of the Sustainable Materials Management Webinar Series will be available for those who cannot attend or need to reference the Webinar.  Topic matter and webinar schedules are subject to change. Stay in contact for programming announcements

For more information, visit the Pennsylvania Recycling Markets Center,

2018 Webinar Series!

May 2018

EPA’s WARM Model

The U.S. Environmental Protection Agency developed the Waste Reduction Model (WARM) to help sustainability directors, solid waste planners and organizations track and voluntarily report greenhouse gas (GHG) emissions reductions from various waste management practices, including—source reduction, recycling, anaerobic digestion, combustion, composting and landfilling. An EPA expert will explain how the WARM model was developed; and provide an overview of most recent version of the model and some examples of how the model is utilized.  

Tuesday May 15, 2018/1:30 – 2:45PM EDT

Presenter: Nathan Wittstruck, Economist

 U.S. Environmental Protection Agency, Office of Resource Conservation and Recovery

Topic Subject MatterWaste Reduction Model (WARM

Technical Complexity – Moderate/ High

Registration Link:


Presenter Biography – Nathan Wittstruck

Nathan Wittstruck is an economist with the US EPA Office of Resource Conservation and Recovery. Nathan’s experience includes promoting sustainable materials management, working on e-waste issues and developing voluntary consensus standards. Nathan also spent one year in the international branch supporting work on key environmental issues in the US-Mexico border region and with the North American Commission for Environmental Cooperation. Currently, Nathan’s primary role is the management of the WARM tool, which includes stakeholder engagement and overseeing technical improvements to the tool. Nathan has a master’s degree in economics from the University of California, Riverside.

June 2018

Past, Present and Future of MRF Equipment

A representative of a leading MRF design/ build/ consulting firm provides a perspective on the evolution of recycling processing equipment and the key drivers that will determine what a MRF of the future will look like.  

Tuesday June 19, 2018/1:30 – 2:45PM EDT

Presenter:  Nathiel Egosi, P.E., President, RRT Design & Construction/RRT SIGMA

Topic Subject Matter – MRF Equipment

Technical Complexity – Moderate/ High

Registration Link: