Category Archives: Sustainable Development

The Promise of Seawater Desalination in Algeria: Perspectives

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Algeria is one of the countries most exposed to water stress in the world. Classified as arid and semi-arid, it relies heavily on limited freshwater resources, with overexploited aquifers and dams often at critical levels during recurrent droughts. In response to this reality, the Algerian government has made seawater desalination a major strategic solution to secure potable water supply while alleviating pressure on natural freshwater resources. This approach goes beyond merely meeting human needs: it also potentially contributes to the preservation of terrestrial, marine, and freshwater ecosystems, in line with the objectives of the Kunming-Montreal Global Biodiversity Framework adopted in … Continue reading →

Impact of Urban Trees and Forests on Greenhouse Gas Emissions

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The fight against climate change has placed urban trees and forests at the heart of mitigation and adaptation strategies, to the point that tree planting is often perceived as a simple, visible, and widely accepted solution for reducing greenhouse gas emissions. In many countries, urban greening programs are expanding, with tree-lined streets, boulevards, and public spaces, while large-scale reforestation and forest restoration initiatives are prominently featured in Nationally Determined Contributions (NDCs) under the United Nations Framework Convention on Climate Change (UNFCCC). This situation raises a central question: does planting trees along streets genuinely contribute to reducing greenhouse gas emissions, or … Continue reading →

Sustainability and Energy Efficiency: Key to Affordable Housing

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To be affordable, houses must be designed and built embracing strong principles of sustainability. Ensuring houses are energy-efficient may increase upfront construction costs a bit, including the costs of superior tools and equipment and professional architectural and mechanical engineers services, but the long-term benefits and future cost-efficiency are what matters. Non-believers think that it is an oxymoron to combine the idea of sustainability and affordability. But, the fact is that when homeowners are able to spend less on their energy bills they can budget better for repairs and maintenance, which intrinsically improves the durability and longevity of their houses. In … Continue reading →

Climate Justice and Environmental Justice – Two Concepts for One Challenge

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Science keeps showing that as the effects of climate change get worse, extreme weather events are hurting developing countries a lot. This is especially true in Africa and Asia. Over half of Africa’s people would be at risk of not getting enough food if global warming reached 2°C. As it is, we have already reached about 1°C above pre-industrial levels (1850–1900). If things keep going the way they are, global warming is likely to reach 1.5°C between 2030 and 2052. From 1990 to 2015, the poorest half of the world, which is the most vulnerable to the effects of climate … Continue reading →

Water Security and Transboundary Conflicts: Geopolitical Challenges and Sustainable Water Governance

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Water security has become a central determinant of geopolitical stability and sustainable development, particularly in arid and semi-arid regions. Increasing water demand, combined with climate change and fragmented governance of shared water resources, is intensifying tensions between states. This article analyzes transboundary water conflicts through several emblematic cases and highlights the critical role of cooperative governance, with a particular focus on the North Western Sahara Aquifer System (NWSAS). This study emphasizes that scientific transparency, institutional coordination, and regional cooperation are key to preventing water-related conflicts and ensuring long-term water security. Water as a Strategic Security Issue Water is no longer … Continue reading →

النظام الإداري البيئي

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يُعَدّ التلوّث البيئي العالمي الراهن إلى حدٍّ كبير نتيجةً مباشرة لعمليات التصنيع المتسارعة التي منحت الأولوية، عبر عقود طويلة، للنمو الاقتصادي وتعظيم الأرباح على حساب الاستدامة البيئية. فقد أسهم التطور الصناعي في إطلاق كميات ضخمة من الملوِّثات في الهواء والمياه، وفي تلويث التربة والنظم البيئية، إضافةً إلى تسارع استنزاف الموارد الطبيعية. ومع تزايد وضوح هذه التحديات البيئية وتعقّدها، برزت الحاجة إلى أدوات منهجية تمكّن المؤسسات من إدارة آثارها البيئية والحدّ منها بصورة فعّالة. وفي هذا السياق تطوّرت أنظمة الإدارة البيئية لتصبح أدوات أساسية تسعى من خلالها المنظمات إلى تحسين أدائها البيئي على نحوٍ منهجي وقابل للقياس ومستدام على المدى الطويل. … Continue reading →

مستجمعات المياه الصحية أولوية حرجة لدفع التنمية المستدامة

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تُعرّف مستجمعات المياه أو مساقط المياه (Watershed) بأنها مساحة من الأرض تُصرّف المياه الناشئة عن هطول الأمطار وانصهار الثلوج وتوجه تدفقها لتصب باتجاه الجداول والأنهار، وفي النهاية إلى نقاط التدفق (Outflow points) التي تصب في مستودعات المياه الأكبر حجما مثل الخلجان والمحيطات. ولكل جسم مائي مستجمع مياه أو أكثر. وتسمى أيضًا أحواض الأنهار أو أحواض التصريف (Drainage Basin). كما تُسمّى مصائد المياه (Catchment)، لأن الأرض الصاعدة والمرتفعة (Upstream) تصطاد المياه ومن ثم تجري إلى أسفل التل (Downstream) في اتجاه مجرى النهر أو الجدول القريب. تتكون المستجمعات المائية من وديان منحدرة تحيط بها قمم وتلال مرتفعة. ويتم تحديد حدود مستجمعات المياه … Continue reading →

Water and Gender: A Strategic Lever for Sustainable Water Security

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World Water Day, celebrated every year on 22 March under the auspices of the United Nations, provides a unique opportunity to draw international attention to the vital importance of freshwater and to the persistent challenges related to its access, management, and sustainability. Since its inception, this observance has highlighted an annual theme addressing emerging priorities and structural challenges in the global water sector. In 2026, the chosen theme, “Water and Gender,” explicitly recognizes the close link between water management, sanitation, and gender inequalities, underscoring that the global water crisis is also a social, economic, and human crisis [1]. Although water … Continue reading →

زرع الأشجار لم يكن بهذه السهولة

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ظاهرة الاحتباس الحراري  كانت كلمة جديدة بالنسبة لي عندما كنت في الصف السادس. مندهش من التأثيرات، سألت أستاذ العلوم، “إذا كان بإمكان طلاب مدرستنا زرع الأشجار؟”. كانت الفكرة هي زراعة حوالي 500 شجرة. لسوء الحظ، جاء الرد بالنفي. في الواقع، لقد كان تحديًا عمليًا بالنسبة لنا هو الحصول على المساحة لزرع والإبقاء على 500 شجرة، وكان ذلك نتاج افكاري وأنا طفل. في وقت لاحق، انتهى بنا المطاف في زراعة خمسة أشجار فقط، عاش منها اثنان. الآن عندما أزور مدرستي، وأنظر إلى الشجرتين اشعر بالفرح. وتعصف بذهني الافكار، ماذا لو زرعنا 500 شجرة وتمكنا من حماية أكبر عدد ممكن من ال … Continue reading →

The Environmental Impacts of Minimalist Lifestyle

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The concept of a minimalist lifestyle is more and more popular nowadays and a lot of people try to have a better mindset by adopting it. However, minimalism has considerable environmental impacts and we are going to discuss it in this article. What is the meaning of the ‘minimalist lifestyle’? Minimalism is a term that comes from the early 60s when several artists started to simplify art, like visual art and music. The concept was that with very simple techniques they could capture the essence of the feeling that they wanted to instill in their audience. This phenomenon was very … Continue reading →

Desalination as an Integrated Water–Energy–Material System in Water-Stressed Regions

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Water scarcity has become a structural constraint for sustainable development in arid and semi-arid regions. In North Africa, declining renewable water availability, recurrent droughts, population growth and agricultural demand have pushed conventional water resources beyond their renewal capacity. As a result, seawater desalination has evolved from an emergency response to a strategic infrastructure for national water security. However, the rapid expansion of desalination systems has revealed systemic challenges extending beyond water production. Energy consumption, membrane fouling, chemical use, brine discharge and environmental impacts increasingly determine the sustainability and social acceptability of desalination. At the same time, desalination brine—traditionally considered a … Continue reading →

Energy Transition in Algeria: Concrete Levers to Move from Ambition to Action

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Algeria stands at a critical energy crossroads. Long known as one of Africa’s leading producers and exporters of hydrocarbons, the country is now attempting to balance the twin imperatives of maintaining economic stability from oil and gas revenues while accelerating a shift to a cleaner, more diversified energy system. With global pressure to decarbonize mounting and domestic energy demand rising rapidly, Algeria’s energy transition is no longer just a vision, it is becoming a necessary strategic priority. But turning ambition into tangible results requires a careful blend of policy frameworks, incentives, partnerships, and effective implementation. Algeria’s renewable energy potential is … Continue reading →