Among those that do, the definition varies: 55% define sustainability as the management of issues related to the environment (for example, greenhouse gas emissions, energy efficiency, waste management, green-product development, and water conservation).

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Outdoor product manufacturers, outfitters from across the country and world, conservation organizations and more come to Harrisburg each year for it.

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"If you are going to pay for a wild seafood product, and you want to choose that seafood carefully for your health or for conservation concerns, you will not have that opportunity if you are just being served anything which the industry wants to serve up to you, " she said.

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