Monday, August 5, 2019
Feeding the World: A Challenge for the Twenty- First Century
Feeding the World: A Challenge for the Twenty- First Century Is human originality enough to produce adequate amount of food to provide for the 10 billion people that are expected to live on Earth by 2050 without causing excessive damage to the environment? Vaclav Smil attempts to answer this question in this book; Feeding the World: A Challenge for the Twenty- First Century Vaclav Smil is a ââ¬ËDistinguished Professor Emeritusââ¬â¢ at the University of Manitoba, a member of the Order of Canada and a Fellow of the Royal Society of Canada. Additionally, in 2010, he was recorded amongst the top 100 global thinkers. Vaclav Smil is regarded by many as an incredibly productive and resourceful author whose publications span over a plethora of related fields. Smilââ¬â¢s publications predominately reign over the areas of agriculture, food processing and production and human population. As well as being known for his knowledge pertaining to China, Smil work in the areas of crops, the general biosphere and fertilizers is acknowledged by several experts in their respective fields. Moreover, Smil is widely regarded as an informative author whose work focuses on informing its readers through the use of technical data combined with comprehensive reasoning and his own opinions. There have been a significant number of evaluations pertaining to food production and its consumption in the face of todayââ¬â¢s rapidly growing society. These evaluations tend to vary in their respective approaches depending on the field of study that their writers stem from. In this regard, biological and physical scientists normally attempt to base their arguments around the ââ¬Ëcarrying capacityââ¬â¢ system which is applied to yearly populations. These scientists can then tap into inquiries such as how many individuals can the Earthââ¬â¢s resources provide for. Economists, however, investigate the growth in the production of food over the course of several alongside recognizing policies and trends that have served as a basis for this growth and using this combined knowledge to make predictions of future food production. Vaclav Smil, being a geographer, utilizes the same concepts biological and physical scientists use in his book. Smil, through his book, presents a case in which he advocates for future food demands to be met through the increase of efficiency rather than the increase of supply through additional inputs. Increasing efficiency, he argues, can not only be done through the more effective and efficient use of crop inputs, such as water and fertilizer but also by reducing the post- harvest losses suffered globally. Moreover, he reasons that these methods of increasing efficiency in the near future should be led by a desire to reduce the environmental impact of high- input agriculture and in doing so, will reduce strains on the environment. Smilââ¬â¢s investigation allows him to arrive at a somewhat warily optimistic conclusion where he believes that a world population of ten billion as predicted by the UN to be the stabilizing human population can in fact be sufficiently fed without excessive damage to the biosphere through the means of a more efficient food system. This optimistic conclusion is predominately cemented by the concept of ââ¬Ëeconomic slackââ¬â¢ existing in the present-day production structures and that the chance that this slack can be reduced is quite good. However, this reduction of ââ¬Ëeconomic slackââ¬â¢ standpoint needs the challenging task of creating plant breeding and associated research capabilities in order to supply deliver original and effective equipment to deprived farmers Smil wrote this book not only to inform readers but also to counter some of the arguments made by other authors who have also written to express their views on the problem of feeding the world in the near future. Smil, as is made evident through the arguments he presents in his book, does not share catastrophist or techno- optimist views, the latter of which advocate technology as the key for solving the dilemma. Smil argues that in an effort to gain public fear of the current state of agriculture and of the global food stock, catastrophists tend to emphasize and exacerbate relatively short and temporary periods of decline or stasis in order to express their concerns but these concerns, as Smil explains are often misplaced and that ââ¬Ëperfectly non-catastrophic explanations such as weather and changing policies for fertilizer subsidies, support prices or dietsââ¬â¢ can serve to counter most arguments catastrophists present. Smil does agree with catastrophists in the sense that population needs to be stabilized but this stability, according to Smil will happen eventually and the world will in fact be able to feed the individuals at this stable point with negligible impacts on the environment. Smil does not make an effort to find a middle ground between the ââ¬Ëcatastrophesââ¬â¢ as he terms Lester Brown and Paul Ehrlich and ââ¬Ëebullient cornucopianââ¬â¢ as he calls Julian Simon like many expected but rather attempts a serious evaluation utilizing the best science applicable to the inquiries being dealt with. First Chapter ââ¬â ââ¬ËReasons for concernââ¬â¢ Looks at the growing population.Even though its slowing dramatically, the UN predicts the world populatin wll reach 9.9 billion by 2050 in the medium ââ¬â variant scenario, an increase of 48% from 1999. ââ¬ËDietary transitionsââ¬â¢, Smil argues will add to food demands. This phenomenon is where rising incomes created by economic growth in poor countries produce dramatic changes in diet.There is a decrease in staple grain consumption and a substantial increase in meat and other animal products consumed, accompanied by a rise in total fat consumption. In other words, even with the slowing of population growth, in addition to the continuing demand for staple commodities, the increased demand for foods such as milk, eggs, meat, vegetables, and so on will require continued growth in output. Second Chapter Appraises the biophysical basis of agriculture and stresses the importance of microbial ecology of the soil. Smil acknowledges the use and importance of synthetic fertilizers by stating that only food for 2-3 billion people could have been produced without them, depending on the diets of the general populations. Alternative or organic agriculture on a wide scale basis could help?This might be a solution but can argue against their respective uses and whether they will really help or not. C4 crops which include corn are more photosynthetically efficient than C3 crops that include wheat and rice. This is a solution ââ¬â should we plant more corn? Availability of land, water and nutrients will be adequate on a global basis. However, regional disparities/ scarcities will be made much worse by anthropogenic climate change. Can link to the point of climate change impact on agriculture difficult to access Third Chapter Focuses on the environmental impacts of agriculture. Soil erosion and its effects on yield. Loss of topsoil is often cited as having a major negative impact on food- growing capacity, but how robust is the evidence that degradation- induced productivity losses are rising? The problem may be real and urgent in many regions; for example in large parts of Africa the annual soil degradation equates to millions of metric tons of grains and tubers lost per year. But from a global perspective, the losses may not be significant. The view that emerges from Smilââ¬â¢s account is that the inputs and assumptions underlying calculations of global resources are in many cases debatable. The variations in estimates give comfort that the world as a whole probably has the resources to adapt to demand and produce sufficient food. ââ¬ËFortunately there is nothing inevitable about excessive erosionââ¬â¢ (p. 78). Qualitative soil degradation and how best to maintain soil productivity. Solution Modern high yielding crop varieties are somewhat less sensitive to soil and climate conditions than the farmer- selected varieties- take advantage of this and plant more modern crop varieties. However, these modern crop varieties have not fully escaped the ââ¬ËDarwinianââ¬â¢ features associated with natural selection. This means that improved varieties suited to one region in India are not suited to another region. Environmental pollution from pesticides and fertilizer. Even though Smil hyped it up, it can lead to negatives when used in excess. Nitrate concentrations are quite high in the Rhine and other major rivers in Europe. Smil points this out but fails to mention that the heavy fertilizer applications in Europe are encouraged by the subsidies of the Common Agriculture Policy. This failure to mention this fact stems from his reluctance to thread upon political waters. It is difficult to predict the effect of global warming on agriculture due to its complexity and the dynamic nature of its impact.A solution ââ¬â the yield loss due to heat and moisture stress maybe, at least, partly, offset by the enhancement of photosynthesis and higher water use efficiency. Usually, books on world food prospects are influenced not only by their sources of information but also by then innate optimism/ pessimism of the author, often most apparent in chapters on the environmental changes wrought by agriculture. However, from this chapter, Smil emerges not only as a stern judge but as a long term optimist. For example, ââ¬Ëthere is no shortage of preventive measures for dealing with nearly all of these concernsââ¬â¢ (p 66) Fourth Chapter Here, Smil expresses the core of his vision that agricultural output can be increased through improved efficiency without additional inputs, except for knowledge and genetic enhancement. His ideas are similar in many regards to those of precision agriculture. Smil states that the primary task for agricultural research is not ââ¬Ëto make every plant transgenic, but rather to come up with more precise solutions for farmingââ¬â¢ (pp. 138-39). Precision farming is information- intensive and involves optimizing the timing and amount of inputs. He focuses on the better use of fertilizer and water. Fertilizer can be used more efficiently with better timing and placement, recycling of crop residues and better crop rotation.It is estimated that around 15% of the potassium, 30% of the nitrogen and 40% of the phosphorous is replaced by fertilizers. However, there is a critical need to increase fertilizer use in sub- Saharan Africa. Soil fertilizer is declining there and crop yields falling because of insufficient use of fertilizer. African soil and rainfall make much of the continent subpar for growing food. Despite this, the price of fertilizer in Africa is often two to four times that of the world price. In other words, the region that probably needs fertilizer the most has to pay the most for it. This input problem cannot be fixed through Smilââ¬â¢s ideology, which is heavily against the increase of inputs to solve the dile mma of feeding the world. In order to lower the high prices of fertilizer which results in large because of poor infrastructure and trade networks that are not developed enough to create a low- cost and competitive market, one must invest in them. There are enormous opportunities to improve the efficiency of water use. Possibilities include growing more water- efficient crops and water conservation practises such as reduced tillage. Unlike energy, water once used, can be reused after its quality is restore by appropriate treatment. There is a need to increase water supplies especially in some arid areas, but water harvesting and the use of saline water should be used extensively. Water is generally wasted because it is underpriced. In India, payments for electricity for pump irrigation are by pump size at very low rates and there are many illegal hook-ups that make it free. On the other hand, in Israel, about 60% of irrigation was by drip systems by 1990, with very high rates of efficiency. Which is a major reason water use could drop 30% and crop yields per unit of water application doubled. Reasons against drip irrigation More, generally, what Smil is advocating is the substitution of increasingly plentiful capital and knowledge for increasingly scarce natural resources. Fifth Chapter Explores ways to improve animal efficiency of animal food production. Although consuming animal products is fundamentally inefficient compared to vegetarianism, in a fascinating examination of human evolution, Smil sees a case for 10- 20 kg of meat in the average annual diet of humans, a level which is far exceeded in affluent countries. Close to half of all cereal grains produced globally are now fed to animals. Smil calculates the feed efficiency of different animals per unit of edible product.The most efficient is milk, followed by herbivorous fish, eggs, and chicken, with beef being least efficient Eat and produce less beef? Aquaculture ââ¬â advocates. Fish yields on continental shelves is, on average two orders of magnitude higher, and that of ponds is ten times higher still. However, narrow genetic basis is a challenge to aquaculture: the practise is dominated by a handful of freshwater herbivores and the contribution from marine species rests on even fewer carnivores. Smil believes that transgenic fishes may offer many advantages by growing faster and by tolerating cooler or warmer waters. For example salman with an anti- freeze protein gene from the winter flounder is already available which allows them to survive is very cold environments Sixth Chapter Opportunities to reduce post- harvest losses, which may be as high as 40% and more for some African crops. Smil notes how little attention has been given to post- harvest losses and that there is not a single national or international organization that focuses exclusively on the topic. Insect pests and plant pathogens, which account for huge losses in some conditions should be a target. China for example, suffers heavily from post- harvest losses resulting from improper storage of crops (roughly one- seventh of its cereal harvest every year), low efficiency of animal feeding Seventh Chapter Discusses human nutrition needs and how our understanding of them has evolved. Global average per capita energy requirements are about 2000-2100 calories daily, much less than the estimated supply of 2800. So malnutrition is the result of unequal assess Eighth Chapter Examines the dietary transition in detail and considers what the available evidence suggests would be an optimum diet. Smil agrees with others who have concluded that traditional Mediterranean diets, with lots of complex carbohydrates, fruits and vegetables and moderate amounts of meat, are the healthiest. Ninth Chapter Deals with the question of ââ¬ËWho will feed Chinaââ¬â¢ asked by Lester Brown by saying that ââ¬Ëthe Chinese willââ¬â¢. Smil makes it clear that China clearly has the potential to feed its future population. ââ¬ËA combination of well-proven economic and technical fixes, environmental protection measures, and dietary adjustments can extract enough food from Chinas agroeconomic systems to provide decent nutrition during the next generation s without weakening the countrys environmental foundations.ââ¬â¢ (p. 315) China provides an excellent country to examine in detail because of the constraints faced, the widespread opportunities for improved efficiencies and the implications for the rest of the world leading to the idea of if China can do it, so can the rest of the world Water shortage is becoming an increasing problem in Northern China and there are vast plans to move water from the South to the North. However, water in China is substrantially underpriced like in India and thus used wastefully. Smil has a wonderful example of water in Beijing costing only a fifth as much as in Winnipeg, which is his home and has plentiful water supplies. Smil also provides ample evidence that the amount of farmland in China has been substantially undercounted, and hence the yields are lower than what they could be and the room for yield improvement is considerably greater Smil appeals to the experience with the energy price increases in the 1970s to show that producers and consumers did reduce inefficiencies in energy production and use when price incentives were provided to them Sexual Trauma Intervention: A Case Study Sexual Trauma Intervention: A Case Study Responding to Sexual Trauma: Sandraââ¬â¢s Case Effects of sexual trauma Sexual assaults have severe immediate and also long-lasting effects which can be devastating on the emotional, on the physical and also the relational health of the sexual assault victims (Gilliland James, 2013). The overwhelming stress of sexual assault normally alters personal adjustment, the psychobiology and the systems of the victims. A traumatic experience usually impacts the entire person; how we learn, how we think, our way of remembering things and the feelings about ourselves, how we feel about others and our ability to make sense in the world. All the above factors are rooted in our psychobiological development and also in our experience of human evolutionary (Gilliland James, 2013). Sexual assault trauma can affect personââ¬â¢s adjustment in all levels, posttraumatic stress disorder is a very disabling and chronic condition and the magnitude of PTSD is extremely high after rape. Just like Sandra, rape victims are likely to suffer from a severe depression, become substance abusers and make suicidal attempts. In the case of Sandra, she seeks counselling because she was depressed, after several sessions she discloses that she was raped by her uncle from an age of 4 to 9 and she also experienced two other rape cases while in high school and these trauma experiences made her to be completely depressed. Sandra had also developed substance problems. As she discloses, she spend most of her time drunk from the age of 18-22. As a result of PTSD she ended up sleeping with several men because she was traumatized and depressed after undergoing several rape experiences. Sandra also discloses several suicide attempts; she had one suicidal attempt but fortunately the car tire blew out before she reached her target. This is one of the effects of sexual assault to Sandra. She is a survivor of child sexual abuse and this makes her vulnerable to re-victimization. Victims of sexual assaults tend to be powerless, helpless and hopeless (Walker, 1994). This explains why Sandra slept with more than 70 men; in order to avoid feeling powerless and helpless. Thus, Sandraââ¬â¢s behaviour is an outcome of sexual assaults. Intervention strategies Psychoeducational Effective treatment for Sandraââ¬â¢s case includes psycho-educational intervention strategy. Although this approach alone does not fully eliminate the symptoms in the long term, it has proved to be the most effective when combined with anxiety management strategy. Rape victims usually feel more relieved when they realise that they are not crazy, but are experiencing PTSD manifestations, which is a reaction experienced by most raped women. I advocate for the use of this intervention strategy in the treatment of Sandra since she needs to accept understand that her symptoms as response to trauma but not pathology (Hunter, 2009). This will enable her strengthen self-esteem and also boost her sense of self-worth. As Sandra needs to raise her daughter the use of this method will help her identify inner strengths which were not disrupted by the trauma, including perseverance, the coping skills and intellect (Kress, Trippany, Nolan, 2003). Cognitive Therapy Intervention Strategy This intervention strategy is most appropriate when addressing symptoms such as shame, loss of interest in specific activities, detachment, numbing and guilty (Hunter, 2009). While using this method the victims are trained on how to identify the beliefs and particular thoughts which they experience during the state of negative emotions. In this intervention strategy, the victim is assisted in evaluating challenges and validity of various ideas and hence replaces most irrational beliefs with the more rational as well as with beneficial thoughts. I would use this intervention strategy in the treatment of Sandra as it will help her stop maladaptive beliefs that all her familymembers are abusers and hence replace it with positive thought. This method will also help her to challenge self-blame and the blame which is perpetuated by her mother and the significant others (Kress, Trippany, Nolan, 2003). Cognitive therapy treatment is normally designed in a manner that it assists victims to restore their personal power disrupted during the assault (Walker, 1994). Since all the perpetrators use violence and power, women tend to view all power related issues as negative. This refrains victim from gaining personal power. Cognitive therapy on Sandra will enable her replace the negative views of power and control with positive beliefs of adequate power. As a result, Sandra will gain courage to so stop using substances and hence use her power to control her life as well as that of her daughter. Cultural, legal and ethical issues Women reaction to sexual assault should be considered within sociocultural context. To some extent, rape is not just a crime of sex and should be further conceptualized as part of crime of power. Sandraââ¬â¢s rape case is one of the patriarchal system tools which demonstrate gender inequality as well as devaluation of women in the society (Vonk, 1999). Sandraââ¬â¢s rape experience restricts her freedom and ability to use power. Although most feminists examine rape on the lines of power and gender, various cultural variables such as class and ethnicity are keys factors in womenââ¬â¢s response as well as the trauma recovery. Factors to consider include her cultural differences while accessing the services, the feelings she have while reporting the crime, and how her community receives rapes disclosures (Vonk, 1999). Perpetrators of rape should be given heavy penalties including life term sentences. If Sandra was a male victim The effects of sexual trauma are more severe on female than in men. However, in some instances some men find it challenging to recover from the sexual assault trauma. Men become more powerless and hopeless when sexually assaulted than women, a man will do anything just to avoid feeling powerless and if Sandra was a man he could possibly turn away from the victimââ¬â¢s role and assume the victimizerââ¬â¢s role. This is one of main effects of sexual trauma in male as they try to identify themselves with the power of their victimizers (Hunter, 2009). Notably, men becomes more addicted and attracted to substance abuse than women. In that regard, if Sandra was a male, it could be difficult for her to stop substance abuse. Male victims are also likely to seek ravage on their perpetrators more than the female victims (Kress, Trippany, Nolan, 2003). Thus, in addition to psychoeducational and cognitive therapy intervention strategies, exposure therapy has proved to be more appropriate. This strategy assist victims to overcome the painful memories encountered during the assault. It is done by confronting the victim with specific emotions, situation and thoughts which are related to the incidence of rape (Walker, 1994). Male victims are more likely to recount feelings, thoughts as well as the memories and hence, a well-structured approach will be more appropriate in helping male victims face these realities. References Gilliland, B. E., James, R. K. (2013). Crisis intervention strategies. Page 194 Hunter, S. V. (2009). Beyond Surviving Gender Differences in Response to Early Sexual Experiences With Adults. Journal of family issues, 30(3), 391-412. Kress, V. E. W., Trippany, R. L., Nolan, J. M. (2003). Responding to sexual assault victims: Considerations for college counsellors. Journal of College Counselling, 6(2), 124ââ¬â133. Vonk, M. E. (1999). An ethic of care: A framework for ethical decision making with survivors of sexual assault. Social Thought, 19(1), 49-62. Walker, L. E. (1994). Abused women and survivor therapy: A practical guide for the psychotherapist. American Psychological Association.
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