Science Media Centre

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Should we put biowaste on our agricultural land?

Peter Griffin posted in on October 12th, 2009.

Biowaste is the unavoidable end-point of our civilisation.  It’s made up of all of our waste, including biosolids (sewage sludge) and biodegradable material that is nutrient-rich.  Many countries use a large proportion of treated biosolids on their agricultural land, and it’s a strategy to which New Zealand is giving increasing thought. While countries such as […]

Newsletter digest: biowaste, COP15 and SCANZ

Peter Griffin posted in on October 9th, 2009.

Biowaste: Save our soils? It is easy to forget that New Zealand’s wealth is underpinned by the top 15 centimetres of soil coating our productive land. Our agriculture relies on fertile soil, but each year 200 – 300 million tonnes of topsoil is washed out to sea – a rate up to ten times faster […]

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