Most of us know the importance of saving energy, and many know the importance of saving water. But few of us connect that by saving one, we also save the other.
A large amount of energy is required to treat water and pump it to your home, just as a vast amount of water is needed to cool the power plants that generate electricity.
It takes around 15,000 litres of water to produce enough electricity to power a 60 watt light globe for 12 hours per day over a year.
In the home, heating water for showers, shaving, cooking and cleaning also uses a considerable amount of energy. Read more
Water is essential for all socio-economic development and for maintaining healthy ecosystems. As population increases and development calls for increased allocations of groundwater and surface water for the domestic, agriculture and industrial sectors, the pressure on water resources intensifies, leading to tensions, conflicts among users, and excessive pressure on the environment. The increasing stress on freshwater resources brought about by ever rising demand and profligate use, as well as by growing pollution worldwide, is of serious concern.
What is water scarcity? Imbalances between availability and demand, the degradation of groundwater and surface water quality, intersectoral competition, interregional and international conflicts, all contributes to water scarcity.
Scarcity often has its roots in water shortage, and it is in the arid and semiarid regions affected by droughts and wide climate variability, combined with population growth and economic development, that the problems of water scarcity are most acute. Read more
You must have heard that drinking plenty of water promotes healthier life; but have you heard about weight loss benefits offered by water? The following article throws light on the relationship between ‘drinking water and weight loss’. Read on to know various uses of water…
Body cells function well when they are provided with ample amounts of water. Only a well-hydrated body can function efficiently. Water enables the glands and the organs in the body to work properly and quickly. All chemical processes occurring within the body involve energy metabolism. Drinking plenty of water helps boost your metabolic rate and make you feel more energetic. Increased metabolic rate results in weight loss. This is the simple explanation for water and weight loss myth. Read more
Surface Ocean Currents
An ocean current can be defined as a horizontal movement of seawater in the ocean. Ocean currents are driven by the circulation of wind above surface waters, interacting with evaporation, sinking of water at high latitudes, and the Coriolis force generated by the earth’s rotation. Frictional stress at the interface between the ocean and the wind causes the water to move in the direction of the wind.
Ocean Circulation Conveyor Belt. The ocean plays a major role in the distribution of the planet’s heat through deep sea circulation. This simplified illustration shows this
Large surface ocean currents are a response of the atmosphere and ocean to the flow of energy from the tropics to polar regions. In some cases, currents are transient features and affect only a small area. Other ocean currents are essentially permanent and extend over large horizontal distances.
On a global scale, large ocean currents are constrained by the continental masses found bordering the three oceanic basins. Continental borders cause these currents to develop an almost closed circular pattern called a gyre. Each ocean basin has a large gyre located at approximately 30° North and one at 30° South latitude in the subtropical regions. The currents in these gyres are driven by the atmospheric flow produced by the subtropical high pressure systems. Smaller gyres occur in the North Atlantic and Pacific Oceans centered at 50° North. Currents in these systems are propelled by the circulation produced by polar low pressure centers. In the Southern Hemisphere, these gyre systems do not develop because of the lack of constraining land masses. Read more
“Water, not unlike religion and ideology, has the power to move millions of people. Since the very birth of human civilization, people have moved to settle close to water. People move when there is too little of it; people move when there is too much of it. People move on it. People write and sing and dance and dream about it.
People fight over it. And everybody, everywhere and every day, needs it. We need water for drinking, for cooking, for washing, for food, for industry, for energy, for transport, for rituals, for fun, for life. And it is not only we humans who need it; all life is dependent upon water for its very survival.” Mikhail Gorbachev in 2003
Water is becoming more and more a scarce and valuable resource as population and consumption rise. Many human factors influence the availability of water, including dams or other engineering, population, and consumerism – or our water use on an individual, business, and government levels. Evaluation of these factors, as well as technology and action to support healthy water supplies, is necessary to gain control of the situation. Read more