We are headed towards a global fertilizer crisis

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We are headed towards a global fertilizer crisis

Beitrag von fidelfisch » 28 Mär 2013 09:31

Ich schreibe gerade an einem Buchkapitel über marine Eutrophierung und da kam mir dieser interessante Bericht von der UNEP über den Weg gelaufen. Er handelt von den ansteigenden Düngerbedürfnissen der Menschheit, deren Nebenwirkungen und der Knappheit der Ressourcen. Ein spannender Aspekt der aufgeführt wird, ist, dass wir uns bald beim sogenannten "peak phosphorus" befinden. Ein parallel zum "peak oil" aufgestellte Hypothese, die besagt, dass wir bald das Fördermaximum von Phosphat erreicht haben.

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We are headed towards a global fertilizer crisis
February 20, 2013 By Bob Meyer 1 Comment

A new report from the United Nations warns of a developing fertilizer crisis in the world. The report, “Our Nutrient World” cites a growing imbalance of fertilizer supply and use around the globe; some areas have too much while other areas do not have enough.

The study notes the use of phosphorus has tripled and synthetic nitrogen use has increased nine-fold since the 1960’s. Projections say fertilizer demand will increase 40 to 50 percent in the next 40 years.

The areas with ample supply tend to use too much to the point it is affecting ecosystems, polluting surface water, prompting algae growth and fish kills.

On the other end of the spectrum are areas of the world with little or no access to fertilizers which are unable to produce enough food and continue traditional practices which degrade the soil. Areas of particular concern are Africa, Latin America and parts of Asia.

The report’s lead author, Professor Mark Sutton from the UK Centre for Ecology & Hydrology says we need to rethink how fertilizers are distributed and used around the globe. Sutton states: “Our analysis shows that by improving the management of the flow of nutrients we can help protect the environment, climate and human health while addressing food and energy security concerns.”

Quelle (englisch): http://brownfieldagnews.com/2013/02/20/ ... er-crisis/

Kompletter Bericht (englisch): http://initrogen.org/uploads/rte/ONW.pdf

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