The document discusses water footprints, which measure the amount of freshwater used to directly and indirectly produce goods and services. It outlines three types of water footprints - blue, green, and grey - which measure surface water, rainfall, and water pollution levels. The Water Footprint Network aims to share knowledge and tools to address growing water scarcity and pollution. Water footprints vary greatly between different foods and diets depending on meat consumption levels. The document also examines water footprints of agricultural products, companies like GSK, Coca-Cola, and Nestle which are working to reduce their water impacts.

1. WATER FOOTPRINT
 THE WATER FOOTPRINT MEASURES THE
AMOUNT OF WATER USED TO PRODUCE
EACH OF THE GOODS AND SERVICES WE
USE
 THE WATER FOOTPRINT IS A MEASURE OF
HUMANITY’S APPROPRIATION OF FRESH
WATER IN VOLUMES OF WATER
CONSUMED AND/OR POLLUTED.

2. DIFFERENT MEASURES OF WATER FOOTPRINTS
• BLUE WATER FOOTPRINT
 THE VOLUME OF WATER THAT HAS BEEN SOURCED FROM SURFACE OR GROUNDWATER RESOURCES
AND HAS EITHER EVAPORATED, OR BEEN INCORPORATED INTO A PRODUCT OR TAKEN FROM ONE
BODY OF WATER AND RETURNED TO ANOTHER, OR RETURNED AT A DIFFERENT TIME
• GREEN WATER FOOTPRINT
 THE AMOUNT OF WATER FROM PRECIPITATION THAT, AFTER HAVING BEEN STORED IN THE ROOT ZONE
OF THE SOIL, IS EITHER LOST BY EVAPOTRANSPIRATION OR INCORPORATED BY PLANTS
• GREY WATER FOOTPRINT
• THE VOLUME OF WATER THAT IS REQUIRED TO DILUTE POLLUTANTS TO SUCH AN EXTENT THAT THE
QUALITY OF THE WATER MEETS AGREED WATER QUALITY STANDARDS

3. WATER FOOTPRINT NETWORK (WFN)
• THE WATER FOOTPRINT NETWORK IS AN INTERNATIONAL LEARNING
COMMUNITY THAT SERVES AS A PLATFORM FOR SHARING KNOWLEDGE, TOOLS
AND INNOVATIONS AMONG GOVERNMENTS, BUSINESSES AND COMMUNITIES
THAT ARE CONCERNED ABOUT GROWING WATER SCARCITY AND
INCREASING WATER POLLUTION LEVELS AND THEIR IMPACTS ON PEOPLE AND
NATURE
• THE NETWORK CONSISTS OF AROUND 100 PARTNERS FROM ALL SECTORS –
PRODUCERS, INVESTORS, SUPPLIERS AND REGULATORS
ISO 14046:2014, ENVIRONMENTAL MANAGEMENT—WATER FOOTPRINT—
PRINCIPLES, REQUIREMENTS AND GUIDELINES
THE ISO STANDARD IS BASED ON LIFE-CYCLE ASSESSMENT (LCA) PRINCIPLES
AND CAN BE APPLIED FOR DIFFERENT SORTS OF ASSESSMENT OF PRODUCTS
AND COMPANIES

4. WATER FOOTPRINTS OF AGRI-PRODUCTS
 THE TOTAL VOLUME OF FRESHWATER USED TO PRODUCE THE PRODUCT, SUMMED OVER THE
VARIOUS STEPS OF THE PRODUCTION CHAIN
 IT REFERS NOT ONLY TO THE TOTAL VOLUME OF WATER USED; IT ALSO REFERS TO WHERE AND
WHEN THE WATER IS USED
 HE WATER FOOTPRINT NETWORK MAINTAINS A GLOBAL DATABASE ON THE WATER FOOTPRINT
OF PRODUCTS: WATERSTAT.
 NEARLY OVER 70% OF THE WATER SUPPLY WORLDWIDE IS USED IN THE AGRICULTURAL SECTOR
 THE WATER FOOTPRINTS INVOLVED IN VARIOUS DIETS VARY GREATLY, AND MUCH OF THE
VARIATION TENDS TO BE ASSOCIATED WITH LEVELS OF MEAT CONSUMPTION.

5. ESTIMATED GLOBAL AVERAGE WATER FOOTPRINTS

6. WATER FOOTPRINTS OF COMPANIES
• THE TOTAL VOLUME OF FRESHWATER THAT IS USED DIRECTLY OR INDIRECTLY TO RUN AND SUPPORT
A BUSINESS.
• IT IS THE TOTAL VOLUME OF WATER USE TO BE ASSOCIATED WITH THE USE OF THE BUSINESS
OUTPUTS.
• THE WATER FOOTPRINT OF A BUSINESS CONSISTS OF WATER USED FOR
PRODUCING/MANUFACTURING OR FOR SUPPORTING ACTIVITIES AND THE INDIRECT WATER USE IN
THE PRODUCER'S SUPPLY CHAIN.
• GLAXOSMITHKLINE (GSK) : WATER AVAILABILITY, WATER QUALITY, HEALTH IMPACTS, AND LICENCE
TO OPERATE (INCLUDING REPUTATIONAL AND REGULATORY RISKS) IN ORDER TO ENABLE GSK TO
QUANTITATIVELY MEASURE, AND CREDIBLY REDUCE, ITS YEAR-ON-YEAR WATER IMPACT
• THE COCA-COLA COMPANY: WATER SUSTAINABILITY, REUSE OF WATER, SUSTAINABLE SOURCE OF
RAW MATERIALS
• NESTLE: REDUCE DIRECT WATER WITHDRAWALS, CARRYING OUT WATER RESOURCE REVIEWS,
IMPLEMENTING STEWARDSHIP INITIATIVES