People are optimistic about the future.

In terms of having views and being prepared to express them, yes, I think New Zealand's had a leadership role in a lot of things.

Equity, dignity, happiness, sustainability - these are all fundamental to our lives but absent in the GDP.

I only take on roles that I'm passionate about. Life is too short to do things that you're not happy with.

Adopting and promoting sustainable production practices require concerted effort, something which in practice is too often missing or insufficient. Making this shift at the scale required demands forward-looking leadership in the public and private sectors alike.

We need innovation. We need great ideas that can be simply and effectively produced all over the place.

Marine protected areas, and particularly no-take zones, are very effective in allowing regeneration of fish stocks.