Sustainable energy is energy produced and used in such a way that it “meets the needs of the present without compromising the ability of future generations to meet their own needs” according to Wikipedia. All renewable energy sources like solar, wind, geothermal, hydropower and ocean energy are considered as sustainable energy sources. The main advantage …
The Rise of the Sea Levels
Global mean sea level has risen about 21-24 centimeters since 1880, with about a third of that coming in just last two and a half decades. The rising water level is mostly due to a combination of meltwater from glaciers and ice sheets and thermal expansion of sea water as it warms. Throughout the world, …
Effect of Open Defecation on Clean Water and Sanitation
According to the data from the World Health Organization, some 827 000 people in low- and middle-income countries die as a result of inadequate water, sanitation, and hygiene each year, representing 60% of total diarrhoeal deaths. Poor sanitation is believed to be the main cause in some 432 000 of these deaths. Open defecation has …
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Scarce Clean Water
Even though 70% of the Earth’s surface is covered with water, all of it cannot be considered and consumed as clean water. Clean water, indeed, is a rarity now. Fresh water is needed for almost all the human activities. It is a basic human need. And it has also been recognized as a Sustainable Development …