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<i>Fran O'Sullivan</i>: Daunting challenge to feed the world
Prime Minister John Key will today front the first full meeting of a global environmental alliance.
Satisfaction seems to come with income and age
A survey has found that people earning $100k or more rate their quality of life higher than those who earn less.
How to solve the junk food problem
Romanian is seeking to become the first country in the world to impose a far-reaching tax on junk food.
Sydney passes 4.5 million mark
Sydney's population has passed the 4.5 million mark for the first time.
Britain: Air pollution blamed for premature deaths
On average, Britons are dying eight months too soon because of dirty air.
How the West poisoned Bangladesh
Up to 20 million people in Bangladesh are at risk of suffering early deaths because of arsenic poisoning - the legacy of a well-intentioned but ill-planned water project.
India leads boom in overseas study applications
Despite the recession, export education is set for another boom year - thanks largely to India.
Highest January migration gain in six years
The number of people arriving permanently or long term in this country exceeded the number of departures by 2500 in January, the highest gain for a January month since 2004.