North America

Circular Ecology offers resource efficiency services, including carbon footprinting, water footprinting, life cycle assessment (LCA), circular economy and general resource efficiency.

The Global Logistics Emissions Council (GLEC) is a partnership between industry, government, and non-governmental organisations that aims to develop and promote a standardised approach for measuring and reporting greenhouse gas emissions from logistics supply chain activities, including freight transport by road, rail, air, and sea.

The Intergovernmental Panel on Climate Change (IPCC) is a United Nations body that assesses the scientific evidence related to climate change and offers guidance to governments and policymakers on climate-related issues. IPCC provides a range of emission factors in their reports including energy-related emissions, industrial processes, agriculture, and land use and waste management activities.

The German Federal Ministry for Housing, Urban Development, and Building provides the OEKOBAUDAT, an extensive database of emission factors for materials and equipment used in construction and building design.