Love Food Hate Waste is an non-profit that has single handedly reduced a massive portion of the UK’s total food waste using mass consumer and retail education. It worked well there, and now it’s expanding. Check out their incredible app (for apple and android), as well as their country specific website for your country (they even have a presence in New Zealand!)
BDA's recently released guide titled "One Blue Dot" serves as an evidence-based reference guide to eating for health and environmental sustainability. This guide discusses the importance of sustainable diets for dietitians, and includes considerations for diet patterns, food waste, and agriculture.