The 'Plastic-Free Groceries for Plastic-Free Seas' petition asks the four big grocers to cut single-use packaging, backed by Australian Marine Conservation Society (AMCS)'s Unwrapped report (November 2025). It has a named target, a measurable ask and a report behind it, which is what separates a useful petition from a mailing-list builder.
Honest caveat: petitions work as part of a campaign, not alone; pair it with a letter to the retailer and a question at their annual general meeting (AGM) if you are a shareholder.
How to start: marineconservation.org.au/actions/plastic-free-groceries-petition/