The NZ government's "Keep it real online" campaign has gone viral, so what was the secret of its success?
A handy source of information about questions big and small.
Google search histories can be used to reveal how much the public knows about climate change in countries all over the world - and how ready they are to take action to guard against its effects.
Positive messaging wins the day.
AAP Image/Dallas Kilponen
Plastic bags will soon be gone from major supermarkets and many other shops too. Campaigns to reduce plastic even more should focus on positive advice, rather than shaming shoppers for their plastic use.
Everyone knows that plastic waste is an environmental problem. So let's get creative with it.
Giving up alcohol for a month might help you feel better in the short term, but no-one knows if taking part in these campaigns promotes long-term healthy drinking habits.
Many of us might be tempted to give up alcohol for a month as part of a highly publicised campaign, like Dry July. But how successful are these campaigns and how do you measure any long-term benefits?
Anosmia prevents people from smelling any odors.
People with anosmia have no sense of smell, and there is no cure for the condition.
Lost in the crowd.
Anorexia and bulimia only account for around half of eating disorders yet too often they're the only ones we take seriously.