Thanks for your question!
Green detergents can be available in Cape York, however it’s important to consider that the cost of goods and transport of those goods to the Peninsula is high. Therefore eco/earth friendly detergents cannot be guaranteed to be widely in use due to their cost when compared to basic detergents, taking the disposable income of Cape York residents into account.
May I ask what design area you are looking at incorporating green detergents in? If you’re looking at alternatives to washing machines for clothes washing, for example, it’s important for your design to be suitable to be used with all types of detergents, not only eco-friendly ones, as green detergents may not be accessible for your end user.