Sand and dust storms are regular occurrences around the world and more common in arid and semi-arid regions, such as the Middle East. Dust storms play an important role in global dust cycle, and can alter the radiative balance. It can damage agricultural crops and retard plant growth and alter the life cycle of the marine benthic organisms due to less sun light penetration into the sea floor. Dust storms can cause social disruption, economic loss and adverse impact on human health. When the visibility is below 1000 meters on a dusty day, it is considered that dust storm is occurring. … Continue reading →
Urban Heat Island (UHI) Effect arises due to absorption of incident radiation from the sun by built surfaces of tall buildings, roof, concrete structures and asphalt roads and then releasing it in the form of heat. The term “urban heat island” describes the built-up areas that are significantly hotter than the surrounding open, natural or rural areas. It occurs on the surface and in the atmosphere. The built surfaces are made of high-percentage of non-reflective and water-resistant construction materials. These materials act as heat sinks that absorb the radiated heat and store it for long time. The Urban Heat Island … Continue reading →
The Wadi Arabah region is an extremely arid valley in Jordan characterized by hot climate, meager annual rainfall, high evaporation rate and limited water resources. The arid desert creates several challenges to extracting and managing water in this region thus hampering the development of agricultural, domestic, and industrial sectors in the valley. The casual attitude towards water management in the region highlights the need for additional consideration to the hydrological and geographical realities of the area. Agriculture accounts for the largest water consumption, especially in summer. In arid land with high evaporation rates, negative agricultural practices may lead to reduced … Continue reading →
Jatropha is a genus of nearly 175 species of shrubs, low-growing plants, and trees. However, discussions of Jatropha as a biodiesel are actually means a particular species of the plant, Jatropha curcas. The plant is indigenous to parts of Central America, however it has spread to other tropical and subtropical regions in Africa and Asia. Jatropha curcas is a perennial shrub that, on average, grows approximately three to five meters in height. It has smooth grey bark with large and pale green leaves. The plant produces flowers and fruits are produced in winter or throughout the year depending on temperature … Continue reading →
Urban green roofs have long been promoted as an easy and effective strategy for beautifying the built environment and increasing investment opportunity. The building roof is very important because it has a direct impact on thermal comfort and energy conservation in and around buildings. Urban green roofs can help to address the lack of green space in many urban areas. Urban green roofs provides the city with open spaces that helps reduce urban heat island effect and provides the human population on the site with a connection to the outdoors. However, we must differentiate between two types of urban green … Continue reading →
Anthropogenic climatic change is adversely affecting our health which is becoming more severe with each passing year. As per conservative estimates, climate change causes more than 150,000 additional deaths per year. Climate change is threatening public health in general. The population of developing countries, arid regions, coastal areas, mountains and Polar regions are the most exposed to experiencing negative health effects associated with climate change. Children and elderly, especially in poor countries, are the most vulnerable groups. Heat Wave Researches confirm that the average temperature will increase in the Middle East up to 2°C by 2050; therefore, the frequency of heat waves … 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 →
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