Agreed.
But actually - we have such a party in New Zealand, maybe they just didn't rattle the cage strong enough for this years elections?
Some people might have noticed that TOP considers themselves as "teal" - which is basically an amalgamation out of green and blue.
Australia has a Teal Party (which happens to be blue-green - and liberal).
TOP has as well a number of quite sensible environmental policies ...
They might need however some more people to better flash out their policies as well as improving their marketing strategies.