Many countries suffer from shortage of water suitable for human use or with limited water resources. Sea water desalination is one of the best solution to water scarcity. Among many methods used for water desalination, two are most popular; distillation and reverse osmosis. Distillation process is based on evaporating water and collect pure steam water leaving the salt behind. Reverse osmosis process is based on applying pressure on water to go through a semi-permeable membrane that allow only...
Alternative energy - it's on everyone's mind with gas, oil, and electric rates rising and causing prices for everything else to go up also. What can be done? What is energy? Where does it come from? What does it mean to us? Some innovative alternatives on the market may show the way to cleaner and more efficient energy that will not only preserve the environment, but also allow the US to depend less on foreign oil. The nation's energy now comes from several sources of mostly fossil fuels. ...
Sustainability is a subject that has become very popular in the recent years as global concern on climate change and growing population has taken more importance. Moreover, sustainability is starting to grow in popularity as a costumer concept (Ekvall, et al, 2004). Therefore, businesses are now under legal, economic and commercial pressure to operate in a sustainable way, some firms have implemented sustainable polices and schemes often facing compromising decisions at the time of developing...
The environment and its protection have become a tense topic recently, even more so than in the past years, primarily due to the skyrocketing price of oil and the apparent lack of alternate fuel sources which we are ready to utilize. While many alternate sources of energy have been discovered-wind, solar, hydrogen, nuclear, and many others-none is ready to replace our current demand for fossil fuel. Adding to the issue is the threat posed by global warming, the gradual increase in average...
Global warming is very much the subject for scientists, the media, politicians and general public. The term global warming means the increase in average temperature of earth's near-surface atmosphere and oceans. It causes many other aspects such as the threat of new ice age, hole in the ozone layer; Sahel drought; etc. Greenhouse effect is the reason of increase in average temperature of the earth's surface. According to the Fourth Assessment Report in 2007 by the intergovernmental panel on...
XYZ Company (XYZ) has proposed building a hazardous waste incineration plant in the rural town of ABC, California. The inhabitants of ABC are concerned about the possible health and environmental effects of having XYZ in their community. The community members are concerned about noise, pollution, and environmental effects the new plant will have on their health. I am an Environmental Health Expert, and the local Health Officer has asked my opinion on the proposed plant as it pertains to...
Inside each living cell of plants and animals is a cell membrane which contains about 70 per cent of water. So we see that water is essential to life. It is also essential to the industry, in the homes and hospitals - in fact, without water we would find life to be very difficult or non-existence. The Earth's water is always in movement, and the hydrologic cycle, also known as the water cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Since the...
The term 'global warming' is one aspect of the broader term 'climate change'. Global Warming is the increase in the average measured temperature of the Earth's near-surface air and oceans since the mid-20th century, and its projected continuation. Global warming is primarily a consequence of building up of greenhouse gases in the atmosphere. Emission rates for the most important anthropogenic (man-made) greenhouse gas, CO2, have risen 120-fold in the past 150 years. Whereas in the 19th...
The project site is located in the East Kowloon District. It is bounded by Anderson Road to the north, the realigned Sau Mau Ping Road to the south, Po Lam Road to the east, and Lee On Road and Shun On Road to the west I am an international student from Hong Kong. This is my first year at Berkeley, so I am not very familiar with the local urban issues. I choose a place in Hong Kong where I spent most of my life. My study site is the Anderson Road Quarry at Sau Mau Ping in the Kwun Tong District...
Landslides are a major threat to human life, property and constructed facilitates infrastructure and natural environment in massy mountain regions of the world. As a consequence of climatic changes and potential globe warming, an increase of land slide activity is expected in some part of the world in the future. Climate is a dynamic component of the environment, which has a direct and indirect influence on man and his activities. Climate has never been the same over time and space. Most...