What will be the likely impact of the Trans-Pacific Partnership agreement on our "100% Pure" brand, central to tourism and a significant driver of economic growth? International tourism tallied $11.8 billion (just under 20 per cent) of New Zealand's total exports in the year ended March 2015, exceeded only by export receipts from dairy products (just over 20 per cent).
The TPP's chapter on the relationship between trade and the environment starts well and is full of promise. There is recognition of the importance of "mutually supportive trade and environmental policies and practices to improve environmental protection in the furtherance of sustainable development".
Unfortunately, there is no consensus on what "sustainable development" means. True, it is underpinned by the idea that our current social, economic and environmental well-being needs to be in balance, and not compromised for future generations. But there is no unambiguous legal definition of the term, much less any legal mechanism for resolving conflicting social, economic and environmental priorities.
An international environmental law specialist at the University of Auckland, Professor Klaus Bosselmann, says: "Sustainable development resists definition and avoids the hard questions, which is precisely why it has become so popular among governments."
The TPP recognises, in principle, the connection between conservation and trade. It requires parties to "adopt, maintain, and implement" the Convention on International Trade in Endangered Species of Wild Fauna and Flora. However, rather than prohibiting the illegal take of, and illegal trade in, wild flora and fauna, it simply talks about the importance of combating these activities. It's a light-handed approach, with non-committal words "endeavour to" and "as appropriate". There is discretion for members to "exercise administrative, investigatory and enforcement discretion" in dealing with suspected violations of the endangered species convention.