Wednesday, 27 February 2013

karoo fracking and its environmental effects.


Karoo Fracking- Is it a threat or benefit?

South Africa’s Great Karoo is a tourist destination in which travellers explore the nature exposed onto the endless plains among the mountains. It is a historical habitat for the Khoi and San people, who left their legacy as art on their rocks. The great Karoo consists of Flora and Fauna, in which makes up the Karoo as wonderful as it is today.

The Karoo region is frequently identified by the geographic extent of a region of natural vegetation. In search of minerals, through 'fracking', which is the pumping of water and chemicals into rock at high pressure, the rapid expansion of natural gas drilling across the nation endangers human health and the environment, as well as vegetation.
How shale gas is extracted (http://www.foe.co.uk/resource/briefings/shale_gas.pdf)



Although it’s a danger to the environment, it can also be seen as a potential contribution to the economy, as Jobs can be created. In a country where unemployment is a huge factor, hydraulic fracturing automatically becomes one of the alternative measures taken to create jobs.


According to the South African Think Tank, the gas extracted could provide South Africa with 400 years’ worth of energy. For a country that regularly endures power cuts, that would mean a brighter future. It is also estimated that shale gas development could add trillions of rand’s to the country’s Gross Domestic Product.

According to the Department of Mineral resources, making a moderately optimistic assumption that ultimately 30 Trillion Cubic Feet (TCF) will be produced, and using indicative pricing of US$ 4 per thousand cubic feet of gas and an exchange rate of R8 per US dollar, the gross sales value would be almost R1 trillion. Similarly, 1 TCF was sufficient to launch Petro SA’s gas-to-liquids project in Mossel Bay which provides approximately 5% of the national demand for liquid fuels and entails 1500-1600 jobs.

According to KPMG Global Energy Institution, there are 485 shale gas reserves, trillion Cubic feet. It is expected that the contribution of shale gas production to the growth of the economy and GDP would be enhanced by the necessary creation of service industries with all the attendant implications for sales of goods and services.

Fracking, however, is a danger factor to the ecosystem in the Karoo, damaging flora and endangering animal life. It is also a threat to farmers, as the crop production will decrease due to crop damages. This will lead to loss of lives as many depend on the crops for survival, including the farmers. According to KPMG Global Energy Institution, the other environmental factors include Groundwater contamination; where chemicals leak into underground rivers, as well as drinking water leads to health risks, in being exposed to diseases such as cholera, Gasification; when gas migrates into groundwater, it may build up pressure, leading to explosions, water usage risks, in which water may be intensive and may pose risks in water restricted areas, Spills and blowouts, in which well blowouts can cause spills that could spread into the surrounding soil and wetlands, streams and waterways. Therefore wastewater kept in storage ponds can overflow in high rains.

Sources consulted








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