-
Do we promote long term profits over short term profits?
- With what means do we exploit our natural resources and to what ends?
- Should we protect our human and natural capital and seek self-sufficiency?
- Is there a limit to growth beyond the expansion of economic capital?
- How do we provide the island with a sustainable water and energy source?
- Is it feasible to bear initial investments by generating renewable energy?
Nauru
unlike El Hierro had tremendous amounts of phosphates exploited throughout
colonial times and after its independence in 1964. Driven by the international
market for fertilizers, Nauru became one of the world’s wealthiest
countries in the 1960s-70s. In the 1970s its citizens
used to buy all sorts of goods, some driving their SUV along the only road, leaving it on the sidewalk once the tank got empty to immediately get a brand new
car. However, failing to diversify its tiny economy, phosphate-moneys were squandered
abroad in shady real estate and trust funds. After the 1980s the promised
return on investments did not occur and phosphate reserves rapidly
declined – so did royalties to landowners in Nauru.
Today billions of profits have vanished, state debts are piling up,
public health is disastrous due to fast-food diets and inactivity – for years
work was subcontracted to foreigners. The
deliberate choice to promote phosphates as the only trade and rampant political
corruption have destroyed the island’s ecosystem within less than 50 years.
Top-soils have been completely dug out (80% of the Nauru’s surface) causing
soil erosion and desertification, underground layers are dangerously hollow and
threaten to collapse. Rising sea levels
worsen this phenomenon, as is already the case for other islands in Oceania. Mining
activities took a huge toll on groundwater quality and reserves, leaving Nauru
a barren land stripped from its plant cover, a reality cast in its
topography today (see pictures below).
Courtesy Nauru @ commonground191.com |
Courtesy Nauru @ toptenfamous.com |
(1) Agriculture:
acknowledging that over 40% of El Hierro's water is going to agriculture, biological
farming is considered the less harmful approach. For instance, sheep and goats are preferred
over cows to avoid soil erosion. The Island council rents 20 hectares of agricultural
land to farmers including a greenhouse.
Locally bio-labelled products such as banana, pineapples, mangos,
papayas, avocados and figs are preferred over water-intensive products (e.g. olives, rice).
(2) Energy & water supply: confronted
with water and energy scarcity El-Hierro’s initial problem was to find a
cost-effective way to desalinate sea water and harvest energy. Thereby, the technical concept made use of
the only natural resource available in bulk: streams of Atlantic wind! In a nutshell 5 windmills (total capacity
11.5 MW) generate up to three times electricity needs (11,000 households). Additional power is channeled to the
desalination plant producing drinking water. What if there is no wind? The
back-up plan involves pumping water from a lower basin to a higher basin, which
is then released thus triggering 6 hydro-turbines (total capacity 11.3 MW)
satisfying energy and water demand (see sketch below).
Courtesy El Hierro @ GEO Magazine, goronadelviento.es |
Courtesy El Hierro @ eldiaro.es |
(3) Tourism: El
Hierro made the early choice of ecological tourism restraining from building costal sea
resorts and huge touristic estates overlooking the main beaches. Instead, its
shores are left almost intact with the exception of a small artificial harbor.
In turn, scarce resources are not overburdened by mass tourism and local
inhabitants do make a living from small businesses (eco-lodges, bed and
breakfast, local market ect.) most tourists staying only for a day or two. The next step is to rely exclusively on
electric cars and recycle 100% of waste instead of 50% today.
Ethical
choices have bestowed opposite fates upon Nauru and El Hierro – surely we
can learn from them in terms of water and environmental ethics. Islands will always give us valuable insights!
RB