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2009-03-02
3 commentaires
Un extrait d’un rapport récent des nations unies :
The Environmental Food Crisis The Environment’s Role in Averting Future Food Crises
« Aquaculture, freshwater and marine fisheries supply about 10% of world human calorie intake – but this is likely to decline or at best stabilize in the future, and might have already reached the maximum. At present, marine capture fisheries yield 110–130 million tonnes of seafood annually. Of this, 70 million tonnes are directly consumed by humans, 30 million tonnes are discarded and 30 million tonnes converted to fishmeal. The world’s fisheries have steadily declined since the 1980s, its magnitude masked by the expansion of fishing into deeper and more offshore waters (Figure 10) (UNEP, 2008). Over half of the world’s catches are caught in less than 7% of the oceans, in areas characterized by an increasing amount of habitat damage from bottom trawling, pollution and dead zones, invasive species infestations and vulnerability to climate change (UNEP, 2008).
Eutrophication from excessive inputs of phosphorous and nitrogen through sewage and agricultural run-off is a major threat to both freshwater and coastal marine fisheries (Anderson et al., 2008; UNEP, 2008). Areas of the coasts that are periodically starved of oxygen, so-called ‘dead zones’, often coincide with both high agricultural run-off (Anderson et al., 2008) and the primary fishing grounds for commercial and artisanal fisheries. Eutrophication combined with unsustainable fishing leads to the loss or depletion of these food resources, as occurs in the Gulf of Mexico, coastal China, the Pacific Northwest and many parts of the Atlantic, to mention a few.
Current projections for aquaculture suggest that previous growth is unlikely to be sustained in the future as a result of limits to the availability of wild marine fish for aquaculture feed (FAO,2008).[…] In some regions, such as in parts of Africa and Southeast Asia, increase in fisheries and expansion of cropland area have been the primary factors in increasing food supply. Indeed, fisheries are a major source of energy and protein for impoverished coastal populations, in particular in West Africa and Southeast Asia (UNEP, 2008). Here, a decline in fisheries will have a major impact on the livelihoods and wellbeing of hundreds of millions of people (UNEP, 2008).
Le problème c’est qu’il faut nourrir la masse humaine qui a envahi la planète . Toute législation est vaine. C’est un combat néo-colonial et vision toujours stéréotypé de notre système économique … etc
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Un extrait d’un rapport récent des nations unies :
The Environmental Food Crisis The Environment’s Role in Averting Future Food Crises
« Aquaculture, freshwater and marine fisheries supply about 10% of world human calorie intake – but this is likely to decline or at best stabilize in the future, and might have already reached the maximum. At present, marine capture fisheries yield 110–130 million tonnes of seafood annually. Of this, 70 million tonnes are directly consumed by humans, 30 million tonnes are discarded and 30 million tonnes converted to fishmeal. The world’s fisheries have steadily declined since the 1980s, its magnitude masked by the expansion of fishing into deeper and more offshore waters (Figure 10) (UNEP, 2008). Over half of the world’s catches are caught in less than 7% of the oceans, in areas characterized by an increasing amount of habitat damage from bottom trawling, pollution and dead zones, invasive species infestations and vulnerability to climate change (UNEP, 2008).
Eutrophication from excessive inputs of phosphorous and nitrogen through sewage and agricultural run-off is a major threat to both freshwater and coastal marine fisheries (Anderson et al., 2008; UNEP, 2008). Areas of the coasts that are periodically starved of oxygen, so-called ‘dead zones’, often coincide with both high agricultural run-off (Anderson et al., 2008) and the primary fishing grounds for commercial and artisanal fisheries. Eutrophication combined with unsustainable fishing leads to the loss or depletion of these food resources, as occurs in the Gulf of Mexico, coastal China, the Pacific Northwest and many parts of the Atlantic, to mention a few.
Current projections for aquaculture suggest that previous growth is unlikely to be sustained in the future as a result of limits to the availability of wild marine fish for aquaculture feed (FAO,2008).[…] In some regions, such as in parts of Africa and Southeast Asia, increase in fisheries and expansion of cropland area have been the primary factors in increasing food supply. Indeed, fisheries are a major source of energy and protein for impoverished coastal populations, in particular in West Africa and Southeast Asia (UNEP, 2008). Here, a decline in fisheries will have a major impact on the livelihoods and wellbeing of hundreds of millions of people (UNEP, 2008).
http://www.grida.no/publications/rr/food-crisis/
Le problème c’est qu’il faut nourrir la masse humaine qui a envahi la planète . Toute législation est vaine. C’est un combat néo-colonial et vision toujours stéréotypé de notre système économique … etc