Around the world, climate change has brought about seemingly more incidences of climate extremes. Sub-Saharan Africa is a prime example of a region with many countries suffering from water scarcity. Water scarcity is quite possibly the most important issue that exists, seeing as it is the one essential resource for humans and all other life. Water scarcity in this region is somewhat ironic because of the numerous freshwater rivers that run throughout the region. The main reason for this water problem is the mismanagement and lack of energy required to redistribute the water. The water issue is inevitably linked to both energy resources and food resources. Water is the basis for all agriculture and is required for livestock. Water is also needed for almost any type of energy conversion. In a fossil fuel power plant, water is both the working fluid of the system and the coolant used in the condenser. In dams, the potential stored in flowing water is the basis of the creation of energy. Water, conversely, requires power to be transported and treated for drinking and agriculture. Sub-Saharan Africa has nearly maximized the energy of its large rivers, thus new sources of energy must be implemented to help with the energy crisis. A couple of the possibilities are fossil fuel power plants, geothermal power plants, and solar panels. Solar panels require a large amount of capital to build, but are nearly free to maintain, and can be cheaper in the long run. Solar power is an undeniably renewable resource and does not adversely affect the environment. Solar power can be utilized both for electricity generation and for irrigation and cooking in remote communities. Geothermal power plants utilize the potential stored in the earth's crust in places with volcanic activity. East Africa has an especially large potential for geothermal energy due to its many volcanoes. As for thermal power plants, combined cycle power plants paired with a salt water cooling system would greatly improve efficiency and drastically decrease water usage. By replacing Rankine cycle power plants that are used in most of Sub-Saharan Africa with either combined cycle plants or gas cycle plants, efficiencies would improve and far less water for cooling would be used in the system.

References

References
1.
United Nations Water for Life,
2006
, “
Water Scarcity
,” retrieved March 28, 2014. Available at: http://www.un.org/waterforlifedecade/scarcity.shtml
2.
Food and Agriculture Organization of the UN,
2007
, “
Areas of Economic and Physical Water Scarcity
,” retrieved March 28, 2014. Available at: http://www.fao.org/nr/water/art/2007/scarcity.html
3.
United Nations Water,
2014
, “
Statistics
,” retrieved March 28, 2014, http://www.unwater.org/statistics/en/
4.
International Energy Agency (IEA),
2011
, “
World Energy Statistics
,” retrieved March 28, 2014. Available at: http://www.iea.org/statistics/statisticssearch/
5.
Iris News,
2007
, “
South Africa: Drought emergency in six provinces affects 4 million
,” retrieved April 16, 2014. Available at: http://www.irinnews.org/report/48149/south-africa-drought-emergency-in-six-provinces-affects-4-million
6.
International Rescue Committee,
2011
, “
Crisis in East Africa
,” retrieved April 16, 2014. Available at: http://www.rescue.org/drought-east-africa
7.
United States Department of Agriculture,
2000–2014
, “
World Agricultural Production
,” retrieved April 16, 2014. Available at: http://usda.mannlib.cornell.edu/MannUsda/viewDocumentInfo.do?documentID=1860
8.
Eaton
,
J.
,
2012
, “
Solar Energy Brings Food, Water, and Light to West Africa
,” National Geographic, retrieved March 28, 2014. Available at: http://news.nationalgeographic.com/news/energy/2012/03/120314-solar-drip-irrigation-in-benin-africa/
9.
Food and Agriculture Organization of the UN,
2014
, “
Aquastat
,” retrieved March 28, 2014. Available at: http://www.fao.org/nr/water/aquastat/main/index.stm
10.
Solargis,
2014
, “
Solar Radiation Maps
,” retrieved March 28, 2014. Available at: http://solargis.info/doc/index.php?select=71
11.
General Electric Company, “
FlexEfficiency 50 Combined Cycle Power Plant
,” retrieved March 28, 2014. Available at: http://www.ge-energy.com/products_and_services/products/gas_turbines_heavy_duty/flexefficiency_50_combined_cycle_power_plant.jsp
12.
Nigeria LNG, “
Our Company
,” retrieved March 28, 2014. Available at: http://www.nlng.com
13.
Wong
,
K. V.
, and
Johnston
,
J.
,
2014
, “
Cooling Systems for Power Plants in an Energy-Water Nexus Era
,”
ASME J. Energy Res. Technol.
,
136
(
1
), p.
012001
.10.1115/1.4024918
14.
International Geothermal Association,
2004
, “
What is Geothermal Energy
,” retrieved March 28, 2014. Available at: http://www.geothermal-energy.org/geothermal_energy/electricity_generation.html
15.
Think Geoenergy, “
Aluto-Langano
,” retrieved March 28, 2014. Available at: http://thinkgeoenergy.com/directory/city/aluto-langano/
16.
Think Geoenergy, “
Plant Map
,” retrieved March 28, 2014. Available at: http://map.thinkgeoenergy.com/
17.
Solar Electric Light Fund, “
Mission
,” retrieved March 28, 2014. Available at: http://self.org/mission/
18.
Simkin
,
T.
,
Tilling
,
R. I.
,
Vogt
,
P. R.
,
Kirby
,
S. H.
,
Kimberly
,
P.
, and
Stewart
,
D. B.
,
2006
, “
This Dynamic Planet: World Map of Volcanoes, Earthquakes, Impact Craters, and Plate Tectonics
,” retrieved March 28, 2014. Available at: http://pubs.usgs.gov/imap/2800/TDPfront-screen.pdf
19.
Black and Veatch,
2012
, “
Cost and Performance Data for Power Generation Technologies
,” retrieved June 17, 2014. Available at: http://bv.com/docs/reports-studies/nrel-cost-report.pdf
20.
Gleason
,
K. L.
,
Lawrimore
,
J. H.
,
Levinson
,
D. H.
,
Karl
,
T. R.
, and
Karoly
,
D. J.
,
2008
, “
A Revised US Climate Extremes Index
,”
J. Clim.
,
21
(
10
), pp.
2124
2137
.10.1175/2007JCLI1883.1
21.
Sillmann
,
J.
, and
Roeckner
,
E.
,
2008
, “
Indices for Extreme Events in Projections of Anthropogenic Climate Change
,”
Clim. Change
,
86
(
1–2
), pp.
83
104
.10.1007/s10584-007-9308-6
22.
Wong
,
K. V.
,
2014
, “
Recommendations for Water-Energy Nexus Problems
,”
ASME J. Energy Res. Technol.
,
136
(
3
), p.
034701
.10.1115/1.4026462
23.
Wong
,
K. V.
, and
Chaudhry
,
S.
,
2012
, “
Use of Satellite Images for Observational and Quantitative Analysis of Urban Heat Islands Around the World
,”
ASME J. Energy Res. Technol.
,
134
(
4
), p.
042101
.10.1115/1.4007486
24.
Wong
,
K. V.
,
Dai
,
Y.
, and
Paul
,
B.
,
2012
, “
Anthropogenic Heat Release Into the Environment
,”
ASME J. Energy Res. Technol.
,
134
(
4
), p.
041602
.10.1115/1.4007360
25.
Wong
,
K. V.
,
Paddon
,
A.
, and
Jimenez
,
A.
,
2013
, “
Review of World Urban Heat Island: Many Linked to Increased Mortality
,”
ASME J. Energy Res. Technol.
,
135
(
2
), p.
022101
.10.1115/1.4023176
26.
Wong
,
K. V.
,
2010
, “
The Second Law of Thermodynamics and Heat Release to the Global Environment by Human Activities
,”
ASME
Paper No. IMECE2010-38201.10.1115/IMECE2010-38201
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