The concept of a circular economy has been gaining a lot of momentum on the agenda of many countries in recent years. In its core, it describes an economic model which opposes the current so-called linear economy, where output is produced, used and disposed at the end of its lifespan. In contrast, circular economy advocates suggest a model in which raw materials used during the life cycle of a good are completely reintegrated into the production process. Circular economy, therefore, means more than just to recycle your old appliances, but includes considerations about how to redefine products and services in … Continue reading →
Since energy is an absolute necessity for life on Earth, we have utilized many sources of energy to maintain and improve the lives of people around the globe. The ultimate source of energy is the Sun of course, since all living things on Earth such as plants, trees, animals and humans need the Sun’s energy. In addition to the Sun, we have utilized other sources of energy such as oil, coal and nuclear fission. However, energy has many different forms and we use different forms of energy for different applications. For example, nuclear energy is mostly used to generate electricity, … Continue reading →
Desertification is a worldwide phenomenon afflicting countries all over the world. The desert is making a comeback in the Middle East, with fertile lands turning into barren wastes. According to United Nation’s Development Program’s 2009 Arab Human Development Report, desertification is threatening around one-fifth of the MENA region. China is experiencing desertification at an alarming rate – as much as 1,300 square miles each year. Sub-Saharan Africa is drying up, as are regions of Turkey that were once rich agricultural lands. During the 1992 Rio Earth Summit, the world’s leaders adopted the United Nations Convention to Combat Desertification (UNCCD) and agreed on the desertification definition … Continue reading →
Bioremediation is an engineering process which uses microorganisms to degrade a material. It can be used to treat contaminated media such as water, air and soil, by altering the environmental conditions to stimulate growth of microorganisms and degrade the target pollutant and enhance the quality of the media. In this age of rapid industrialization and depleting natural resources, there is an alarming need for a much effective sustainable development model and new ways to decontaminate and re-energize our surrounding land, water and air. Bioremediation provides an efficient and environment-friendly treatment compared to various other remediation technologies involving chemicals and radiation. … Continue reading →
A lot of fuss is going around fossil fuels and other non-renewable sources of energy, it seems that the focus was suddenly shifted towards renewables sources of energy. This could be explained by the eminent danger of running out of these sources while the whole world is still depending on them, not to mention the effect of global warming as well. The shift of attention towards environmental awareness all around the world led the industries to start adopting new approaches in the research and development of energy alternatives. We’ll be giving you a brief review of how the world views … Continue reading →
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