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Benjamin McKeown

Food, energy and water: the politics of the nexus | Jeremy Allouche | Science | The Gua... - 0 views

  • Jeremy Allouche
  • In a paradoxical way, this was the first time that the business community came to realise the limits to growth.
  • modellers, farmers, and civil engineers have known about these inter-relationships for a long time.
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  • systems approach, where the interactions between different sectors are modelled as global and regional flows, ignoring day-to day realities, local priorities and needs; • A decision-making tool based on these interactions, which provides an economic valuation of these resources and a market mechanism to efficiently allocate them.
  • It treats the trade-offs between human needs for water, energy and food as a perfect equilibrium model, in which resource allocation can be decided.
  • This can encourage the commodification of resources, downplaying environmental externalities, such as biodiversity and climate change, as well as poverty alleviation needs.
  • The villagers affected by the Rasi Salai Dam are now experiencing water scarcity after losing these wetlands.
  • Originally, the government claimed that the dam would provide water for 5,500 hectares of land
  • look
  • This example highlights how elements of the nexus, whether food, water or energy security, take on different meanings at different levels of analysis, from the global to the local.
  • optimisation;
  • A different framing of the nexus is required: one which recognises that global priorities may not reflect local concerns; and that resource allocations are political decisions, which need to be decided through more open and transparent decision making. The nexus must become more inclusive, so that its interrelationships can be grounded in local realities and human needs.
Benjamin McKeown

The effects of subsidies | Global Subsidies Initiative - 0 views

  • the benefits to society of that money, if it had been spent otherwise, or left in the pockets of taxpayers, might have been even greater.
  • heory shows that these depend on a number of factors, among which are the responsiveness of producers and consumers to changes in prices (what economists call the own-price elasticities of supply and demand), the form of the subsidy, the conditions attached to it, and how the subsidy interacts with other policies.
  • such subsidies tend to divert resources from more productive to less productive uses, thus reducing economic efficiency.
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  • Those who take a more benign view argue that subsidies can serve redistributive goals, or can help to correct market failures. But, as the public-finance economist Ronald Gerritse once warned, subsides defended on such grounds "may have externalities that we did not bargain for." Indeed it is such second-order effects that have come under attack by environmental economists in recent years.
  • any subsidies are defended as benefiting disadvantaged groups, or groups the politicians like to make us believe are disadvantaged.
  • tend to favour larger producing units. Recently, for example, the Environmental Working Group, an American non-profit organization, counted up all the direct payments made by the U.S. Government to farmers between 1994 and 2005 and found that ten percent of subsidy recipients collected 73 percent of all subsidies, amounting to $120.5 billion Analyses of agricultural support programmes in other countries appear to lend credence to the 80:20 rule - the impression that 80% of support goes to 20% of the beneficiaries.
  • environmentally harmful subsidies" they generally mean subsidies that support production, transport or consumption that ends up damaging the environment. The environmental consequences of subsidies to extractive industries are closely linked to the activity being subsidized, like fishing or logging.
  • Subsidies to promote offshore fishing are a commonly cited example of environmentally harmful subsidies, with support that increases fishing capacity (i.e., subsidies toward constructing new boats) linked to the depletion of important fishery stocks. In other industries, subsidies that promote consumption or production have led to higher volumes of waste or emissions. For example, irrigation subsidies often encourage crops that are farmed intensively, which in turn leads to higher levels of fertilizer use than would occur otherwise. Moreover, irrigation subsidies can lead to the under pricing of irrigated water, which in turn fosters the overuse and inefficient use of water. While many subsidies have unintended negative consequences on the environment, well designed subsidies can be beneficial when they work to mitigate an environmental problem. In the context of fisheries, for instance, these would include subsidies to management programs that help ensure that fisheries resources are appropriately managed and that regulations are enforced, or to research and development (R&D) designed to promote less environmentally destructive forms of fish catching and processing.    
Benjamin McKeown

Ocean Resources - MarineBio.org - 0 views

  • Humans began to mine the ocean floor for diamonds, gold, silver, metal ores like manganese nodules and gravel mines in the 1950's when the company Tidal Diamonds was established by Sam Collins.
  • Diamonds are found in greater number and quality in the ocean than on land, but are much harder to mine. When diamonds are mined, the ocean floor is dredged to bring it up to the boat and sift through the sediment for valuable gems. The process is difficult as sediment is not easy to bring up to the surface, but will probably become a huge industry once technology evolves to solve the logistical problem.
  • Metal compounds, gravels, sands and gas hydrates are also mined in the ocean. Mining of manganese nodules containing nickel, copper and cobalt began in the 1960's and soon after it was discovered that Papua New Guinea was one of the few places where nodules were located in shallow waters rather than deep waters. Although manganese nodules could be found in shallow waters in significant quantities, the expense of bringing the ore up to the surface proved to be expensive. Sands and gravels are often mined for in the United States and are used to protect beaches and reduce the effects of erosion.
Benjamin McKeown

Admit it: we can't measure our ecological footprint | New Scientist - 0 views

  • “when humanity exhausted nature’s budget for the year” and began “drawing down local resource stocks and accumulating carbon dioxide in the atmosphere”. This year it was on 20 August, the earliest date yet.
  • “so misleading as to preclude their use in any serious science or policy context,” it says in a paper in PLoS Biology.
  • The footprint analysis does not really measure our overuse of the planet’s resources at all. If anything, it underestimates it.
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  • It does this by measuring the productive land and sea area available – cropland and pasture, forests and fishing grounds – and matching that against the demands placed on them. This biological accountancy system concludes that planet Earth has a biocapacity of 12 billion hectares, and a human demand equivalent to 18 billion hectares. Hence the 1.5 Earths figure. Our footprint is 50 per cent too big.
  • I had assumed that the analysis assessed the damaging environmental consequences of how we use the land – things like soil erosion and the overuse of water reserves. But no. It only measures land area.
  • “Local ecosystem abuse is a significant problem [but] to make reliable adjustments would require data sets that do not exist,” he writes. Or, as he told me: “Our current accounts cannot include soil erosion. Hence cropland use equals cropland availability.”
  • It uses UN statistics to compare the timber we harvest against annual growth. The conclusion is that, while we are deforesting some areas, growth elsewhere more than makes up for the loss. This is reflected in a surplus in the accounts.
  • If the calculation is to be believed, while some fish stocks are being over-exploited, a greater number are under-exploited and overall fish biomass is increasing. That’s another surplus
Benjamin McKeown

Are eco-friendly initiatives pointless unless we tackle overpopulation? | Life and styl... - 0 views

  • carrying capacity
  • His answer? “If you want to live like North Americans, 200 million.”
  • Determining some sort of final number that the human race can comfortably survive at is virtually impossible without considering the differing way we consume resources. Each American single-handedly produces the same amount of carbon emissions as 20 people from India, 30 from Pakistan or 250 from Ethiopia.
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Benjamin McKeown

Water, Food and Energy | UN-Water - 0 views

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    "The water-food-energy nexus is central to sustainable development. Demand for all three is increasing, driven by a rising global population, rapid urbanization, changing diets and economic growth. Agriculture is the largest consumer of the world's freshwater resources, and more than one-quarter of the energy used globally is expended on food production and supply. The inextricable linkages between these critical domains require a suitably integrated approach to ensuring water and food security, and sustainable agriculture and energy production worldwide."
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