John Key will enter climate talks tonight with the power to up NZ's 10-20 per cent target for emissions cuts, but he is very unlikely to use it.

Appearance is a useful guide to longevity and can be used to distinguish those who will die young from those likely to live to a great age, researchers say.

New Zealand officials were consulted over a controversial document which has compromised climate talks in Copenhagen.

The US president's decision to attend the end of the Copenhagen summit means "real business" can be done, says Climate Minister Nick Smith.

John Key will be offered $4781 by Lucy Lawless and Jim Salinger in an attempt to get him to a climate change conference in Denmark.

John Key had "quite a fruitful" discussion with US president Barack Obama during the official Apec leaders' dinner last night, and also breakfasted with him today, writes John Armstrong.

European study shows encouraging results for new class of anti-obesity agents which mimic the action of a hormone that occurs naturally in the gut.

Britain has the biggest drink problem among 13-year-olds in the Western world, according to a major study on child wellbeing published today.

Go crockery crazy with plates almost too pretty to eat from.

Legoland Billund has something for the child in all of us, says Leah McLennan.

The Danish town of Billund is home to a unique theme park made out of 400,000 Lego blocks.