Analytical Clarity – The Backbone of Our Services.

GHG Engineering, LLC began operations in 2014 as a low-carbon emissions transportation analysis and a climate change consulting firm. 

Examples GHG Engineering’s current and recent projects include a water sustainability assessment for Washington Gas (now Alta Gas); railroad track reconstruction quality assurance and quality control (QA/QC) inspection services for RailWorks Track Services, Inc.; biogas facility process engineering inspections for an RFS consulting firm; regional electricity planning technical support and Certificate of Public Convenience and Necessity (CPCN) reviews for solar energy projects for a leading energy consulting firm in MD; and a legacy petroleum exploration/production contamination investigation, country regulatory analysis, and regional data analysis for a leading litigation support firm in the U.S.

For several of the above projects we integrated Web-based Geographical Information Systems (GIS) spatial analysis, field data collection using ESRI’s Survey 123, and Web maps using ArcGIS Online. The application of GIS resulted in clearer actionable results and deliverable accessibility  across our Clients’ organization.  

Our pro bono work includes organizing a forum on sustainable transportation business opportunities at the Embassy of Costa Rica in Washington, DC together with the Business Council for Sustainable Energy. We also played a leadership role in advancing biofuel policy development for Maryland’s Greenhouse Gas Reduction Act Plan (GGRA) in concert with private sector firms and industry associations. In this role GHG Engineering wrote technical and policy background documents in support of including biodiesel, renewable natural gas, and other low-carbon fuels in the GGRA Plan.

John Mosheim, GHG Engineering’s Manager, is a Professional Engineer in MD and OH. He has degrees in Geology from the University of Costa Rica, Chemical Engineering from the University of Texas at Austin, and a Graduate Business Certification from Harvard University. John is Certified Energy Manager (CEM) and has a U.S. Army Corps of Engineers’ Certification in Construction Quality Management. GHG Engineering consultant roster includes professionals in GIS applications, renewable and nuclear energy policy analysis, civil engineering, and construction QA/QC and inspections.


Maryland DOT – Minority Business Enterprise (MBE) Certification

Washington Suburban Sanitary Commission – Minority Business Enterprise (MBE) Certification


Clean Energy Business Network in Washington, D.C.

John A. Mosheim, P.E., CEM

Principal Sustainability Engineer + QA/QC Inspection Services Manager 

John A. Mosheim, P.E., CEM has over 25 years of experience in water sustainability engineering, energy and greenhouse gas emission reduction projects, renewable fuels, heavy construction project QA/QC and Plan development, and legacy contamination litigation support.

His vision is to assist organizations gain competitive advantage by including triple bottom line sustainability principles and geographical information systems solutions to deliver actionable results and enhance information sharing opportunities throughout organizations.