Food production requires application of fertilizers containing phosphorus, nitrogen and potassium on agricultural fields in order to sustain crop yields. However modern agriculture is dependent on phosphorus derived from phosphate rock, which is a non-renewable resource and current global reserves may be depleted in 50–100 years. While phosphorus demand is projected to increase, the expected global peak in phosphorus production is predicted to occur around 2030. The exact timing of peak phosphorus production might be disputed, however it is widely acknowledged within the fertilizer industry that the quality of remaining phosphate rock is decreasing and production costs are increasing. Yet future access to phosphorus receives little or no international attention. This paper puts forward the case for including long-term phosphorus scarcity on the priority agenda for global food security. Opportunities for recovering phosphorus and reducing demand are also addressed together with institutional challenges.

/pdf/the-story-of-phosphorus-global-food-security-and-food-for-189ky5hvd6.pdf

The story of phosphorus: Global food security and food for thought

https://scholarlypublications.universiteitleiden.nl/access/item%3A2978611/view

Microplastics in freshwater and terrestrial environments: Evaluating the current understanding to identify the knowledge gaps and future research priorities.

Climate Change 1995 is a scientific assessment that was generated by more than 1 000 contributors from over 50 nations. It was jointly co-ordinated through two international agencies; the World Meteorological Organization and the United Nations Environment Programme. The assessment was completed by the Intergovernmental Panel on Climate Change (IPCC) with a primary aim of reviewing the current state of knowledge concerning the impacts of climate change on physical and ecological systems, human health, and socioeconomic factors. The second aim was to review the available information on the technical and economic feasibility of the potential mitigation and adaptation strategies.

Climate Change 1995

Geigy Scientific Tables

A vast number of pharmaceuticals have been detected in surface water and drinking water around the world, which indicates their ineffective removal from water and wastewater using conventional treatment technologies. Concerns have been raised over the potential adverse effects of pharmaceuticals on public health and aquatic environment. Among the different treatment options, ozonation and advanced oxidation processes are likely promising for efficient degradation of pharmaceuticals in water and wastewater. Recent progress of advanced oxidation of aqueous pharmaceuticals is reviewed in this paper. The pharmaceuticals and non-therapeutic medical agent of interest include antibiotics, anticonvulsants, antipyretics, beta-blockers, cytostatic drugs, H2 antagonists, estrogenic hormone and contraceptives, blood lipid regulators, and X-ray contrast media.

https://www.tandfonline.com/doi/pdf/10.1080/01919510600985937

Degradation of Aqueous Pharmaceuticals by Ozonation and Advanced Oxidation Processes: A Review

Low pH as an inhibiting factor in the transition from mesophilic to thermophilic phase in composting

SE—Structures and Environment

* Based on Jönsson, H. et al. 2004. Guidelines on the Use of Urine and Faeces in Crop Production. EcoSanRes Publication Series. Report 2004-2. Stockholm Environment Institute; Stockholm, Sweden. Available from www.ecosanres.org ological sanitation (ecosan) is y closing the nutrient and water cycles. Nutrients from human excreta should be returned to the soil to fertilize crops. Safe processing of the urine and faeces into fertilizer is described in EcoSanRes Fact Sheet 5. Keeping urine and faeces separated at the source simplifies safe processing and handling of excreta.

Guidelines on the use of urine and faeces in crop production

Source separated urine-nutrient and heavy metal content, water saving and faecal contamination

https://pub.epsilon.slu.se/11247/1/sundberg_et_al_140702.pdf

Håkan Jönsson

Papers

Low pH as an inhibiting factor in the transition from mesophilic to thermophilic phase in composting

SE—Structures and Environment

Guidelines on the use of urine and faeces in crop production

Source separated urine-nutrient and heavy metal content, water saving and faecal contamination

Effects of pH and microbial composition on odour in food waste composting.