Golf Balls (pack of 12)

Material Composition Assumptions

A standard pack of twelve golf balls contains multiple synthetic and natural materials that contribute to their carbon footprint. Each ball weighs approximately 45.9 grams according to regulatory standards, resulting in a total package weight of approximately 551 grams for twelve units.

The synthetic rubber core comprises the largest portion by weight at roughly 30 grams per ball, representing about 65% of each ball’s mass. The polyurethane cover accounts for approximately 8 grams per ball or 17% of the weight. Surlyn thermoplastic resin makes up about 4 grams per ball, while zinc compounds including zinc oxide and zinc acrylate contribute roughly 2 grams per ball. Natural rubber and hardening agents like benzoyl peroxide constitute the remaining 1.9 grams per ball.

Packaging materials add an estimated 50 grams to the total product weight, primarily consisting of cardboard boxes and plastic sleeves that protect the balls during transport and retail display.

Manufacturing Geography

Golf ball production occurs primarily in three regions, with China accounting for the majority of global manufacturing due to lower labor costs and established supply chains for synthetic materials. The United States maintains significant production capacity through facilities operated by major brands, while Japan produces premium golf balls using advanced manufacturing technologies.

Chinese manufacturing facilities typically operate on a grid intensity of 531 gCO2 per kilowatt-hour, which significantly impacts the carbon footprint of energy-intensive production processes. American facilities benefit from a more diverse energy mix with an average grid intensity of approximately 386 gCO2 per kilowatt-hour, while Japanese manufacturing operates on a grid intensity of around 462 gCO2 per kilowatt-hour.

The concentration of synthetic rubber production in Asia influences manufacturing location decisions, as proximity to raw materials reduces transportation costs and emissions associated with material sourcing.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	531 gCO2/kWh	2.1	+5%
United States	386 gCO2/kWh	1.8	-10%
Japan	462 gCO2/kWh	1.9	-5%
Germany	348 gCO2/kWh	1.7	-15%
South Korea	417 gCO2/kWh	1.85	-7.5%

Provenance Override Guidance

1. Energy consumption data from the specific manufacturing facility, including renewable energy percentages and annual kilowatt-hour usage per unit produced.

2. Transportation documentation showing shipping methods, distances, and fuel types used from raw material suppliers to manufacturing facility and from facility to distribution centers.

3. Material sourcing certificates indicating the origin of synthetic rubber, polyurethane, and other key components with associated upstream emissions data.

4. Water usage and recycling metrics from the production facility, including water treatment processes and discharge management systems.

5. Waste generation and disposal records showing material efficiency rates, recycling percentages, and end-of-life treatment for manufacturing byproducts.

Methodology Notes

• The CCI score represents cradle-to-gate emissions for a pack of twelve golf balls, including raw material extraction, processing, manufacturing, and packaging but excluding use phase and end-of-life disposal.

• Scope 3 emissions dominate the carbon footprint due to the energy-intensive production of synthetic rubber and other petroleum-based materials, which require significant fossil fuel inputs during chemical processing.

• The functional unit is one retail package containing twelve standard golf balls with associated packaging materials.

• Excluded from this assessment are retail operations, consumer transportation to purchase location, and environmental impacts from golf balls lost in water hazards or natural areas.

• Data gaps exist around specific energy consumption patterns at individual manufacturing facilities and variations in synthetic material production processes across different suppliers.