unintended result of the United Nations' recent efforts to promote decolonisation in Tokelau. Tokelauans have proven somewhat reluctant to push their national identity in the political realm: recent decolonisation moves have mainly been driven from outside for ideological reasons. But at the same time, Tokelauans are reluctant to disown their common cultural identity with Swains Islanders who speak their language. Environment Tokelau is located in the Western Polynesian tropical moist forests ecoregion. Most of the original vegetation has been replaced by coconut plantations, some of which have been abandoned and became scrubby forests. The atolls of Tokelau provide habitat for 38 indigenous plant species, over 150 insect species and 10 land crab species. One of the greatest threats to biodiversity is posed by introduced mammalian predators such as the Polynesian Rat. In 2011 Tokelau declared its entire exclusive economic zone of a shark sanctuary. Economy According to the US Central Intelligence Agency's list of countries by GDP (PPP) Tokelau has the smallest economy in the world. Tokelau has an annual purchasing power of about US$1,000 (€674) per capita. The government is almost entirely dependent on subsidies from New Zealand. It has annual revenues of less than US$500,000 (€336,995) against expenditures of some US$2.8 million (€1.9 million). The deficit is made up by aid from New Zealand. Tokelau annually exports around US$100,000 (€67,000) of stamps, copra and woven and carved handicrafts and imports over US$300,000 (€202,000) of foodstuffs, building materials, and fuel to, and from, New Zealand. New Zealand also pays directly for the cost of medical and education services. Local industries include small-scale enterprises for copra production, wood work, plaited craft goods, stamps, coins, and fishing. Agriculture and livestock produces coconuts, copra, breadfruit, papayas, bananas, figs, pigs, poultry and a few goats. Many Tokelauans live in New Zealand and support their families in Tokelau through remittances. Solar power The goal of 100% renewable electricity was met on 7 November 2012, according to the Foreign Affairs Minister of New Zealand, Murray McCully. Previously electricity was generated using diesel generators and was only available about 16 hours/day. Three solar power stations with a total generation capacity of 930kWp were installed to provide 100% of current electrical demand from photovoltaics, with lead acid battery backup able to store around 8MWh. The first power station was completed in August 2012. In total, 4,032 solar panels are used and 1,344 batteries weighing each. The systems