Growing Demand for Freshwater in US and China to …

According to one , by 2040 there will not be enough water available to meet global demand for both drinking and energy production. The shrinking freshwater resources and growing demand will have negative ramifications for billions of people. In this article we discuss five consequences of a future with widespread water shortages.

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Food Shortages
With a global population on pace to reach , shrinking water resources will make it difficult for food production to keep up with rising demand. The United Nations warns that political turmoil, social unrest, civil war and terrorism could result from food shortages unless food production is increased by . Agriculture already accounts for about 70% of global freshwater withdrawals to keep up with current food demand. Increased farm water conservation through are needed to slow the unsustainable withdrawals from groundwater sources.

Water Demand and Management Issues - igeogers

Rem Twenty-five years from now, more than half of China's water supply will be used for  to feed its growing population
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especially, absolutelywill need calcium many times during the growing season, in theform of bonemeal, a few Tablespoon per plant. Scatter thebonemeal around each plant, and water in. You can tell whenyou need calcium if the plants stop growing and if young leavesstart to pucker---they are running out of calcium to buildnew leaves.

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As the world population continues to grow geometrically, greatpressure is being placed on arable land, water, energy, andbiological resources to provide an adequate supply of food whilemaintaining the integrity of our ecosystem. According to theWorld Bank and the United Nations, from 1 to 2 billion humans arenow malnourished, indicating a combination of insufficient food,low incomes, and inadequate distribution of food. This is thelargest number of hungry humans ever recorded in history. InChina about 80 million are now malnourished and hungry. Based oncurrent rates of increase, the world population is projected todouble from roughly 6 billion to more than 12 billion in lessthan 50 years (Pimentel et al., 1994). As the world populationexpands, the food problem will become increasingly severe,conceivably with the numbers of malnourished reaching 3 billion.

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Energy Shortages
World energy requirements are rapidly increasing with modernization and population growth, however energy production is one of the world’s greatest consumers of freshwater resources. In the United States, thermoelectric power plants accounted for of freshwater withdrawals in 2010. Global electricity demand is projected to grow by the year 2035 with India and China accounting for half of the growth. Alternative energy sources like wind and solar energy require far less water to produce but only make up a small fraction of today’s energy production.

Mar 07, 2009 · Scott D

Sempra Energy’s operations have an impact on the environment that goes beyond greenhouse gas emissions and water use. Construction and operation of energy infrastructure can generate waste. Energy infrastructure can affect nearby plants and animals. To reduce our impact and continue to grow our business, we: