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Although Māori culture was a totally stone-age culture until the arrival of Europeans and the introduction of metal, it was highly evolved. The various working materials used before the Māori had access to metal were mainly bird bones, whale bones, ivory teeth, both dog and human bones, and also stone, from the large stone resources which had been discovered further inland within New Zealand.

› Māori : The name "Māori" originally meant "the local people", or "the original people". Māori was a word which signified "local" or "original" - as opposed to the new arrivals - white European settlers - the "pakeha". With the arrival of European settlers, the word Māori gradually became an adjective for the "Māori people". This change took place before 1815.

Computer hardware can include plastics made with dioxin

When these materials get into the water supply, they can lead to birth defects and worse.

A few years ago, the question would end there: we would have to decide whether we want portable electronics or zero harmful waste.

Certain materials used in electronic products are toxic and pose a threat to the environment.

Green electronics focuses on elimination of harmful elements and components, and recycling of electronic products at the end of life. Among the harmful elements are lead, cadmium, mercury and polybrominated diphenyl ether (PBDE).

Around 90 per cent of all electronic components contain some lead

more than a million babies in the region die each year before they are a month old because of a lack of essential health care.

Malawi, together with Burkina Faso, Eritrea, Madagascar, Tanzania and Uganda, is regarded as having made significant progress in reducing infant deaths over the last 10 years, thanks to increased government spending on basic health care.

Currently infant mortality stands at 94 deaths per 1,000 live births in Malawi. A decade ago, the infant mortality rate was pegged at 146 per 1,000 live births.