The Direct Land Use Change Assessment Tool

The new and improved version of the PAS 2050-1 LUC assessment tool has earned the 'Built on GHG Protocol' mark.

This direct land use change assessment tool is an Excel tool that was developed alongside the PAS 2050-1 to provide a predefined way of calculating greenhouse gas emissions from land use change. GHG emissions arise when land is transformed from one use to another. The most well-known example of this is deforestation for the cultivation of crops. This tool can be used to calculate these emissions for a specific country & crop combination and attribute them to the cultivated crops. However, not in every case the previous land use is known, so this tool also provides means of estimating the GHG emissions from land use change based on an average land use change in the specified country.

The tool provides three basic functionalities, based on three different approaches related to data availability of the user.
1."Country known; land use unknown": Provides an estimate of the GHG emissions from land use change for a crop grown in a given country if previous land use is not known. This estimate is based on a number of reference scenarios for previous land use, combined with data from relative crop land expansions based on FAOSTAT data.
2."Country & land use unknown": The calculation of an estimate of the GHG emissions from land use change when both the country of production and previous land is not known. A weighted average is determined based on FAO statistics, using the same methodology as in 1) for calculating the GHG emissions for each relevant country.
3."Country & land use known": The calculation of GHG emissions of land use change when the previous land use is known. All these approaches are described in the PAS 2050-1 published by BSI, and are made operational in this tool using various IPCC data sources.

Built on GHG Protocolghglogobuilton
The calculation has been under development continuously since the publication of the PAS 2050-1 
and has been reviewed by the World Resource Institute and has, as a result, earned the built on GHG Protocol mark. This tool can be used to quantify land use change emissions in conformance with the GHG Protocol standards. The approach described in the GHG Protocol Product Standard (appendix B, and page 124 in particular) corresponds to the PAS 2050-1 protocol (see below).

PAS 2050-1 Method
The PAS 2050-1 method, supports the assessment of GHG emissions from the cradle-to-gate stages of the life cycle of horticultural products and is an addition to the PAS 2050 general protocol. The protocol is referred to by the ENVIFOOD protocol and the European PEF method. The ENVIFOOD protocol is a product of the European Food Sustainable Consumption and Production (SCP) Round Table. Furthermore, the tool is also in line with the FAO LEAP guidelines currently under development.

You can download the tool here. For questions please send an email to

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