Mostof the natural resources are available in limited quantities, andthis calls for sustainable development to ensure that they are usedin ways that will not compromise the development agendas of theposterity. In addition, sustainable development results in and a justsociety where resources are exploited without interfering theecological balance or the wellbeing of other people (SustainableDevelopment Commission, 2014). However, it is evident that thecurrent human activities are not consistent with the concept ofsustainable development. This paper will focus on how humanactivities have interfered with the ecological balance, among otheraspects of nature.
Agriculture,prerequisite for survival
Agricultureaffects nearly all aspects of human life, including nutrition,quality of life, clothing, and shelter. Most of the products thathuman beings used on a daily basis are obtained from plants oranimals, which are part of agriculture (Diao, Hazell, Resnick,Thurlow, 2007). For example, a typical person under sheets made ofcotton, takes a breakfast of eggs and milk, shelter in a house madeof timber, clothes in silk or cotton, and baths with soaps made ofagricultural products. In essence, in the absence of agriculture, allaspects of human life would be affected.
Humanactivities and ecological balance
Thereare four major human activities that have resulted in rapiddisruption of the ecological balance that essential for life.Over-hunting has endangered some species, thus disrupting the balancebetween preys and predators (Alonzo, 2014). Deforestation hasdisrupted the carbon cycle, which has resulted in the excessaccumulation of the greenhouse gasses. Different types of pollution(including the land and air pollution) have resulted in the loss ofbiodiversity. Rapid increase in population has resulted in rapidurban development, road construction and other development projectsthat have interrupted the natural surface and overexploitation ofnatural resources. The combination of these human activities hasresulted in a significant impact on the ecosystem balance.
Manytheorists have attempted to explain how life came to earth, but theRNA world hypothesis is more reasonable than other suggestions.According to this hypothesis, the planet earth had clusters of RNAthat that were bombarded as the earth rotated forcing them to formadvanced molecules, such as DNA and protein. The complex moleculesthen formed cells, which the basic building blocks of all livingthings (Than, 2007).
Dubaiand its oil proceeds
Dubaiis a region of the world that is removed from nature, but depends onthe nature for all their development. It is evident that Dubai hasachieved its rapid development (including the food imports andconstruction of skyscrapers) through over-exploitation ofnon-renewable sources of energy (Shuck, 2010). Although the rapidprogress achieved by Dubai has been attributed to good leadership andthe spirit of can do, it is worth noting that over-exploitation ofoil and gas will eventually disrupt the nature.
Theprocess of water cycle ensures that the earth has a constant amountof water. There are three processes that lead to the accomplishmentof the water cycle. Sunlight heats water on the earth`s surface,causing them to evaporate. Once in the air, water vapor is cooled andcondenses to form water droplets that in turn for clouds. Furthercooling and condensation of the water vapor results in heavy dropletsthat can no longer be suspended in the air (National Geography,2014). These droplets are precipitated to form the surface water andthe cycle continues.
Thefloating polar ice
Thefloating polar ice provides a protective coat in two ways. First, thecoat prevents a further cooling of waters below it, which protectsaquatic organisms from the adverse effects of temperature extremes(Natural Resource Defense Council, 2001). Secondly, the floating iceforms a reflective layer that reflects some sun rays back to thespace, thus preventing overheating of the ground. This ensures thattemperatures in the polar region are maintained within some limits.
Linkbetween air and water
Thelink between water and air is based on the fact that air has thecapacity to carry steam at incredible amounts. The steam is thencondensed in the atmosphere and precipitated in the form of water,without which life would be impossible on earth. The use of fossilwater that accumulated during the Ice Age in Saudi Arabia to irrigatecrops (such as wheat) is an unsustainable project. It is estimatedthat the fossil waters will only last for 50 years, which means thatthey are part of non-renewable resources (Mims, 2012).
Howlife relies on a balance
Allliving things on the planet earth survive at the mercy of a delicateecological balance. In a simple illustration of this delicate balanceNurbaki (2014) indicated that plants, bacteria, and animals carryoutsome activities that enhance the survival of each other. For example,bacteria transfer nitrogen from animals to plants throughdecomposition. Plants, on the other hand, produce oxygen that isconsumed by animals. Animals, in their part, produce carbon dioxideand nitrogenous compounds that are transferred to plants throughbacteria. This suggests that the elimination of any of the three keyplayers will make the survival of the rest practically impossible.
Whyplants grow towards the sun
Shootsof all plants tend to grow towards sunlight because the sun raysmaximizes the process of photosynthesis, which leads to theproduction of energy needed for plants’ growth. This mechanism isreferred to as the positive phototropism (Smith & Dukes, 2012).Plants use chlorophyll to trap sunlight and use it to produceglucose. Glucose of then converted to other products (such ascellulose) that form the woody sections of plants. Although someplant parts are hard, they are biodegradable, which means thatbacteria are able to decompose them once the plant dies. Thedecomposed matter increases soil fertility, which is suitableagriculture.
Ithas taken the world billions of years of years to produce some of theimportant commodities that support human survival. For example, ittook the world approximately 4 billion years to yield trees thosehuman beings and other animals enjoy today (Klappenbach, 2013). Theseplants are the major sources of food and fertile soil foragriculture. Although human beings have existed on earth for about200,000 years only, they have managed to take control over otherhabitats. This is probably because human beings high a higher levelof intelligence compared to other inhabitants. Consequently, humanbeings have acquired the capacity to exploit other inhabitants fortheir good.
Someof the key contributors of a higher life expectancy include animprovement in nutrition, public health, and medicine (RoyalGeographical Society, 2014). However, these factors cannot beaccessed by the poor. This has resulted in a shorter life expectancyamong the poor compared to the rich. Consequently, the poor areforced to engage in hard labor and be at the risk of uncertainties ofnature, including diseases. In addition, the increase in the cost ofliving reduces the capacity of the poor to educate their children anduse them as a source of labor and a means of earning a living. Thismakes a significant difference between the rich and the poor.
Agricultureaffects nearly all if not all aspects of human life. This is becausenearly all products used to make life easier are sourced fromagriculture. However, there are other human activities that havethreatened the agricultural sectors. For example, excessive miningand encroachment of land during the construction of roads andbuildings have reduced agricultural lands significantly. Theseactivities have interfered with ecological balance given by nature. Acontinued interference with the ecological balance is characterizedby a significant loss of biodiversity. It is evident that humanactivities have not been geared towards sustainable development.
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