Much of the sustainability issues in New Zealand deal with
protecting their natural environment.
They have a Department of Conservation that is very active. They have
very strict controls at the airports to catch the spread of invasive species. I
had to declare that I had been hiking in other forests and they examined my
hiking boots for dirt on the way through customs. One of my colleagues forgot
that he had an orange in his checked luggage and did not declare it. He was fined
$400 on the spot when the orange was found.
The Department of Conservation is working to control the
introduced stoats (weasels), rabbits, hedgehogs, feral cats, feral pigs, and
possum populations. New Zealand was the
home to many endemic ground dwelling birds that had no natural predators. Many
of those birds were hunted close to extinction and now are heavily threatened.
It is amazing to realize, that New Zealand had no large native land animals
besides birds so the ground dwelling birds evolved without the threat of
predators which has made them easy prey to humans and these introduced animals.
There is an introduced phytopthera fungus that is infecting
the Kauri trees and killing many of them after about 50 years. This fungus was
apparently accidentally introduced with some forest experiments in the 1950s
when local forests brought in some non-native tree species with intact root
balls in soil. The fungus seems to have spread from some of these experimental
forests and has now spread through much of the remaining Kauri pine forests. We
had to go through boot washing stations at the entrance and exit to every Kauri
forest that we hiked through. This is to try to control the spread of the
phytopthera.
I found very little evidence of wind power or solar power,
although most (possibly 80%) of New Zealand’s power apparently comes from
hydroelectric dams and is supplemented by the burning of coal. The main place
that I saw evidence for wind or solar power was on sailing boats that do not
have another source of electricity. Most boats had some type of alternative
energy that would be connected to a battery for storage of some electricity.
It is amazing that this land was completely forested with
some Mauri landscape effects up to the early 1800s. From the 1840s to the present, Europeans have
had an increasing effect on the landscape which results in clearing of the
forest for lumber, collection of the Kauri gum (both from living trees and
fossil material in bogs), and the introduction of many European tree species.
As I have noted in Tasmania and Australia, Pinus
radiata is a main timber species in New Zealand and was heavily planted as
a reforestation species and a cash crop starting in the early 1900s. Now you see these pine forests all over the
island and they have issues with wilding pines (invasive Pinus radiata which is hard to control).
I found New Zealand to be very lush and green. It was a
familiar landscape since Europeans had “made it productive” by taking out the
native forest and putting in agricultural fields and grazing grasslands
throughout much of the North Island. Conservationists have demonstrated that if
you can plow up the existing grasslands and plant them with native pioneer
trees such as Manuka (Leptospermum
scoparium) and Kanuka (Kunzea
ericoides) the forests recover. Many of the Pinus radiata stands are being harvested and the land converted
back to tropical forest.
I came across a Yarn Bomb site on Devonport Island. Some
creative knitters had made yarn cozies for some poles on a structure right next
to the ocean. It provided a nice bit of color and brought a smile to my face.
I found evidence for similar environmental efforts to what I
have seen in the states. We found a nice riverside restaurant in a small town
and they had EcoChoice napkins made of recycled materials. One of our hotels
had a four sided Conservation and Recycling guide. Most hotels promote the
reuse of towels and sheets (which is the most sustainable and seems to have
caught on because it saves the hotel money and helps the environment).
Many houses collect their own water from their roofs. I
would say that at least 60% of the homes that we passed in the country had a
very large water barrel connected to it gutter system. The water barrels were
probably about 500 gallon capacity.
Greenhouses were also fairly popular and I saw many large
operations of greenhouses throughout the Northland. It was not clear what they
were growing and the climate in the area never got really cold (much warmer
than Indiana). They were growing a lot of corn and some sweet potatoes as crops
scattered across the landscape. They also had many vineyards that we passed
along our travels as you might expect by the availability of Australian and New
Zealand wines in the American market place.
We had a planned stop in a small town for a bathroom break
(called toilets here – apparently the bathroom – where you take baths – is
often a completely separate room). Frederick
Hundertwasser retired to Kawakawa near the Bay of Islands and created a public
toilet with colorful tile work that has become
the main claim to fame for the town. You could see the town had picked up this
artistic theme and actually repeated it throughout the town after the artist
passed away.
Just behind this public toilet on the main street was a much
smaller toilet with an impressive green roof that included a wide range of
plant types. Apparently toilets are where it is at in the Northland of New
Zealand.