Soil to Trash: Calculating Avoided Disposal Benefits, Invited Speaker, Norfolk HUB. Norfolk, CT, January 5, 2022
Drivers & Dilemmas About Recycling, Plenary Session, World Congress International Solid Waste Association, Athens GR, October 4, 2021
The Lifecycle Assessment and Embedded Materials and Energy in a Circular Economy - Circular and Low Carbon Initiative, International Solid Waste Association, Rotterdam, NL, January 29. 2020
The Perfect Storm: The Collapse of the US Recycling Industry - International Solid Waste Association meeting, Rotterdam, NL, November 28, 2019
Glass/Trash /Recycling in Crisis: The China National Sword - NH Department of Environmental Services, Concord, NH, May 2, 2019
Dirt on Dirt: Composting Basics 101, Webinar, Northeast Resource Recovery Association, October 8, 2018
Best Management Practices for Static Aerated-Pile Composting of Food Waste. The 38th Northeast Resource Recovery Association Conference, Manchester, NH, May 21 & 22, 2018
Learning from Past Mistakes: Composting for the Future, The 36th Northeast Resource Recovery Association Conference, Manchester, NH, June 8 & 9, 2016
Translating Research into Policy: How to Participate Effectively in the Policy Process, National Council on Science and Environment & Antioch University New England sponsored half-day workshop, Pew Conference Center, Washington, DC, January 17, 2012
Thirty years of Recycling in the Northeast, The 30th Northeast Resource Recovery Association Conference, Manchester, NH, June 6 & 7, 2011
The Need for Scientists to Effectively Communicate Results to Local Decision-makers, Collaborative Adaptive Management Network Conference, Keene, NH, April 16, 17, and 18, 2011
Scavengers, Micro-enterprises and Global Warming, ANE Speakers Series, Keene, NH, 2003
Designing Municipal Scale Composting Systems, New Hampshire DES Solid Waste Seminar, Hampton, NH, 2002
Finding Economies of Scale in Solid Waste Recovery, National BioCycle Conference, Burlington, VT, 2000
Total Cost Accounting in Solid Waste Management, Fifth Annual Southwest Public Recycling Association conference, Phoenix, AZ, 1997
The New York Times Did Recycling a Favor, Keynote speech at the Second Annual Utah State Recycling conference, Salt Lake City, UT., 1996
An Economic Guide to Composting Alternatives for Solid Waste Management. The New England Resource Recovery conference -Portland, ME. 1994
Garbage to Gold: Urban Waste Management, Jakarta, Indonesia. World Bank, World Development Report Seminars Series, Washington, D.C, 1993
Full Cost Accounting for Waste Reduction, Diversion and Disposal: A 31 County Case Study. ECO World '92, American Society of Engineers, Washington, D.C., 1992
Integrating Leaf and Yard Waste Composting with Waste to Energy Facilities. North American RecyclingCongress - Charlotte, NC. 1990
A Regional Approach to Recycling for the Public Sector. North American Recycling Congress -Seattle, WA, 1988
The Economics of On-Farm Composting. The Farm Composting Conference -University of Massachusetts, Amherst, MA, 1987
Drivers & Dilemmas About Recycling, Plenary Session, World Congress International Solid Waste Association, Athens GR, October 4, 2021
The Lifecycle Assessment and Embedded Materials and Energy in a Circular Economy - Circular and Low Carbon Initiative, International Solid Waste Association, Rotterdam, NL, January 29. 2020
The Perfect Storm: The Collapse of the US Recycling Industry - International Solid Waste Association meeting, Rotterdam, NL, November 28, 2019
Glass/Trash /Recycling in Crisis: The China National Sword - NH Department of Environmental Services, Concord, NH, May 2, 2019
Dirt on Dirt: Composting Basics 101, Webinar, Northeast Resource Recovery Association, October 8, 2018
Best Management Practices for Static Aerated-Pile Composting of Food Waste. The 38th Northeast Resource Recovery Association Conference, Manchester, NH, May 21 & 22, 2018
Learning from Past Mistakes: Composting for the Future, The 36th Northeast Resource Recovery Association Conference, Manchester, NH, June 8 & 9, 2016
Translating Research into Policy: How to Participate Effectively in the Policy Process, National Council on Science and Environment & Antioch University New England sponsored half-day workshop, Pew Conference Center, Washington, DC, January 17, 2012
Thirty years of Recycling in the Northeast, The 30th Northeast Resource Recovery Association Conference, Manchester, NH, June 6 & 7, 2011
The Need for Scientists to Effectively Communicate Results to Local Decision-makers, Collaborative Adaptive Management Network Conference, Keene, NH, April 16, 17, and 18, 2011
Scavengers, Micro-enterprises and Global Warming, ANE Speakers Series, Keene, NH, 2003
Designing Municipal Scale Composting Systems, New Hampshire DES Solid Waste Seminar, Hampton, NH, 2002
Finding Economies of Scale in Solid Waste Recovery, National BioCycle Conference, Burlington, VT, 2000
Total Cost Accounting in Solid Waste Management, Fifth Annual Southwest Public Recycling Association conference, Phoenix, AZ, 1997
The New York Times Did Recycling a Favor, Keynote speech at the Second Annual Utah State Recycling conference, Salt Lake City, UT., 1996
An Economic Guide to Composting Alternatives for Solid Waste Management. The New England Resource Recovery conference -Portland, ME. 1994
Garbage to Gold: Urban Waste Management, Jakarta, Indonesia. World Bank, World Development Report Seminars Series, Washington, D.C, 1993
Full Cost Accounting for Waste Reduction, Diversion and Disposal: A 31 County Case Study. ECO World '92, American Society of Engineers, Washington, D.C., 1992
Integrating Leaf and Yard Waste Composting with Waste to Energy Facilities. North American RecyclingCongress - Charlotte, NC. 1990
A Regional Approach to Recycling for the Public Sector. North American Recycling Congress -Seattle, WA, 1988
The Economics of On-Farm Composting. The Farm Composting Conference -University of Massachusetts, Amherst, MA, 1987