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Greenhouse Gas Estimation

Quantifying Greenhouse Gas Fluxes in Agriculture and Forestry: Methods for Entity-Scale Inventory

America’s farm, ranch and forest managers are stewards of the land, and have long recognized the significance of managing soil health, plant productivity and animal nutrition. Conservation practices and other management changes can reduce greenhouse gas (GHG) emissions and increase carbon storage while improving soil health, crop or livestock productivity, and resilience to drought and other extreme weather.  This report lays out methods for estimating changes in GHG emissions and carbon storage at a local scale.  The methods in the report will be used to develop user-friendly tools for farmers, ranchers, forest landowners and other USDA stakeholders to help them evaluate the GHG benefits of a wide variety of management practices.

Full Document

Executive Summary

Chapter 1 - Introduction

Chapter 2 - Considerations When Estimating Agriculture and Forestry GHG Emissions and Removals

Chapter 3 - Quantify Greenhouse Gas Sources and Sinks in Cropland and Grazing Land Systems

Chapter 4 - Quantifying Greenhouse Gas Sources and Sinks in Managed Wetland Systems

Chapter 5 - Quantifying Greenhouse Gas Sources and Sinks in Animal Production Systems

Chapter 6 - Quantifying Greenhouse Gas Sources and Sinks in Managed Forest Systems

Chapter 7 - Quantifying Greenhouse Gas Sources and Sinks from Land-Use Change

Chapter 8 - Uncertainty Assessment for Quantifying Greenhouse Gas Sources and Sinks

Fact Sheet

Press Release


Additional Project Materials

Supplemental Data

Project FAQ

Federal Register Notice, Feb 2011

Federal Register Notice, Aug 2013

Scientific Review of GHG Emissions Data

This December, 2011 Technical Report provides an extensive summary and synthesis of data related to estimation of GHG emissions and carbon storage.

Review of GHG Tools and Models

This February, 2012 Technical Report provides a synopsis and summary of over one hundred GHG estimation tools, models and methods that are available related to management activities across the agriculture and forestry sectors.