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… Rica, which is now producing 20 per cent of the world’s organic cocoa. At the same time, smallholders are being … per cent a year. Surface waters are polluted by untreated waste water, and irrigation and hydro- electric projects are … of non-timber forest products and the cultivation of organic cocoa (Mesoamerica), developing sustainable forestry …

… built into practical work on many different areas such as waste management, economic use of nature resources, new bio- … consumption of resources (land, water, energy), and waste and sewage products also have a negative impact (Engels … which ideally use nature-based production methods (e.g. organic farming). The The Green Belt of Europe: From Vision …

… and phosphorus, from fertilizers and human or animal waste causes artificial enrichment (eutrophication) of water … oxgen, which in turn reduces the rate of decomposition of organic material and the capacity to support aquatic …