Guide to PAS 2050 How to assess the carbon ... - Aggie Horticulture

Guide to PAS 2050 3
social and economic impacts (e.g. biodiversity, water
use, labour standards and other product impacts).
The method described in PAS 2050 can be used to
assess the life cycle GHG emissions of any type of
product:
• Business-to-consumer (B2C) goods, where the
customer is the end user;
• Business-to-business (B2B) goods, where the
customer is another business using the product as
an input to its own activities; and
• Services that can be either B2C or B2B
This guide explains how to apply PAS 2050 in each of
these circumstances but focuses on a typical consumer
good. Any differences between this B2C application of
PAS 2050 and B2B goods or services is highlighted in
the text. A summary of the differences can be found in
Appendix I.
This guide is structured in the following sections:
1. Start-up
Setting objectives
Choosing products
Engaging suppliers
2. Product footprint calculations
Step 1: Building a process map
Step 2: Checking boundaries and prioritisation
Step 3: Collecting data
Step 4: Calculating the footprint
Step 5: Checking uncertainty (optional)
3. Next steps
Validating results
Reducing emissions
Communicating the footprint and claiming
reductions