Tagged: water

Water pricing and bottling plants - The Dismal Science

Eric Crampton Mar 27, 2017

And here we go for another edition of “Because you’ve misspecified the problem, your proposed solution might make things worse.” The past couple of weeks have had renewed anger about water bottling plants. If you buy land with water drawing rights attached to it, you don’t get charged for drawing that water. The value of the water is baked into … Read More

Bacteria hitch a ride on raindrop spray - News

John Kerr Mar 09, 2017

New research reveals how raindrops on soil create bioaerosols – tiny droplets of bacteria-laden water – which can help spread harmful microbes, including kiwifruit pathogen Psa. Although soil bacteria are usually pretty slow at getting around, wet weather has been suggested to give them a hand travelling large distances. But exactly how rain gets bacteria from the soil into the air has been … Read More

Adults benefit from community water fluoridation as well as children – new research - Open Parachute

Ken Perrott Jan 24, 2017

A new Australian study confirms that lifetime access to community water fluoridation (CWF) is associated with reduced tooth decay for adults – at least in the age groups 15 – 34 years and 35 – 44 years. The study is reported in the paper: Do et al., (2017). Effectiveness of water fluoridation in the prevention of dental caries across … Read More

Water fluoridation – what to expect in the near future - Open Parachute

Ken Perrott Jan 21, 2017

Community water fluoridation (CWF) will persist in science news for the foreseeable future – not for any valid scientific reason but because of reaction to political pressures against it. This is particularly so in New Zealand where our parliament will be discussing legislative changes to fluoridation decision-making this year. This is not to say that all the relevant news will be … Read More

Premature births a factor in cognitive deficits observed in areas of endemic fluorosis? - Open Parachute

Ken Perrott Jan 20, 2017

Anti-fluoridation activists are soon likely to be promoting a new paper reporting a study which found a relationship between maternal (in utero) exposure to fluoride and cognitive development delay in infants. Could the increased incidence of premature births explain cognitive deficits observed in areas of endemic fluorosis? Image credit: New Kids-Center. Of course, they will be unlikely … Read More

Water intoxication: are we drowning in advice to drink more fluids? - Guest Work

Guest Work Dec 05, 2016

Matthew Haines, University of Huddersfield A recent BMJ Case Report outlined the story of a 59-year-old woman who went to A&E after experiencing pain when urinating and abdominal pain. Her symptoms were consistent with urinary tract infection (UTI, commonly referred to by some as cystitis) for which she was prescribed antibiotics and painkillers. During her visit … Read More

Aussie fluoride review: it is safe and effective - Griffin's Gadgets

Peter Griffin Sep 14, 2016

As debate rumbles away in some New Zealand communities about whether public water supplies should be fluoridated, a new report from the Australian Government looks at the situation across the Tasman and gives fluoridation a big tick. The National Health and Medical Research Council’s  draft consultation paper,  Effects of water fluoridation on dental and other health outcomes was published today … Read More

Kids catastrophise climate change - Infrequently Asked Questions

Lynley Hargreaves Jul 28, 2016

It’s good to keep things positive, says Macleans College teacher Susan van der Spuy, when teaching science and environmental issues to children. Otherwise they can tend to think the whole planet is going to burn up. Mrs van der Spuy, who recently finished a placement at Landcare Research under the Royal Society of New Zealand’s Science Teaching Leadership Programme, … Read More