One of IWCA’s goals is to develop and share rigorous methodologies to measure greenhouse gas emissions (GHG) footprints. With detailed inventories, wineries can identify their emissions hotspots and implement targeted strategies, then track their progress in achieving emissions reductions over time.

To encourage widespread, high-standard, consistent GHG measurements, IWCA has worked on developing a GHG calculator. Our methodology, which is region-specific, helps wineries account for annual GHG emissions across Scopes 1, 2, and 3.

BACKGROUND IMAGE: Yalumba Family Winemakers


We have completed the inaugural version of our GHG emissions calculator, which was developed for US-based wineries using US-based emissions factors. It is aligned with World Resources Institute (WRI) GHG Protocols and ISO-14064 standards and covers Scopes 1, 2, and 3.

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Download the latest version of our US GHG calculator. (Email address is required to access the calculator)


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Download IWCA's GHG Inventory Scopes Guidance Document, which outlines the protocols all IWCA members must follow when measuring their GHG emissions.

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What are Scopes 1, 2, and 3, and why does IWCA measure all three?

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What are wineries' largest sources of greenhouse gas emissions?

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