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Yakhchal Ice Maker from Iran and Modern Use For Radiant Sky Cooling

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The cooling potential of the night sky was recognized by societies many centuries ago. In Iran, night sky radiant cooling was used to produce ice even when ambient air temperatures fail to drop below freezing. The tall walls of the yakhchal ran from east to west to fully shade shallow troughs of water throughout the day. These walls could be 10 m tall and 40 m across. In the winter the shade extends out 15 m, but only 7 m in August. The yakhchals came in different styles. Some had multiple shade walls, others curvilinear walls and walls of different … Continue reading →

The Adverse Environmental Impact of Electric Vehicles

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As interest in EVs continues to rise at a rapid pace, questions about the long-term environmental impact of electric vehicles are coming forward. In this article, we will highlight the environmental consequences of using electric vehicles to help you make an informed decision on switching to an EV. More Resources, Reduced Carbon Emissions One of the most notable and attractive features of the modern EV is its “zero emission” component. But while these streamlined vehicles can significantly decrease the volume of carbon emissions released into the environment, the resources needed to build them present some complications. EVs are powered by … Continue reading →

10 Eco-friendly Things You Can Do At Your Home

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As we humans continue to develop, we use more and more resources and put more and more toxins into the air. It’s our responsibility to do what we can help our earth. The first place to start is right at home. There are a number of things we can do in our households to make the world a little bit greener. In this article, we will discuss a few eco-friendly things you can do at your house. 1. Use the right lights The light bulbs you use in your home can make a big difference on your carbon imprint (and … Continue reading →

Renewable Energy in World’s Top-10 Oil Producing Countries

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In April 2019, Puerto Rico Gov. Ricardo Rosselló signed a bill that aims to power the island totally through renewable energy by 2050. It also aims to completely give up coal by 2028. Puerto Rico is an unincorporated territory of the United States of America, which is today the world’s largest oil producing country. This begs the question, what are the world’s top 10 oil producers doing to increase energy from renewable sources? First, let us have a look at how much oil these countries produced in 2017, which was the latest data available at the time of writing this article. … Continue reading →

What Are the Environmental Benefits of Electric Cars

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People are moving away from driving gas-powered vehicles at a tremendous rate for financial and environmental reasons. We have looked at a few key areas where using electric cars will benefit us in the areas we live in and in our wallets. Considering the first Tesla to hit the road was less than twenty years ago (2003), we have seen a dramatic shift towards electric vehicles from small manufacturers all the way through to major car producing companies. This shift has enormous environmental benefits for all of us and will continue to do so for generations to come. 1. Clean … Continue reading →

6 Ways to Make Your Hajj Environmentally-Friendly

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As the Hajj season approaches, millions of Muslims from around the world will head to Mecca to perform their sacred rituals. In light of this massive gathering of believers, the importance of preserving the environment and adhering to sustainability is highlighted, based on the teachings of Islam, which urge us to protect the earth and refrain from corruption. But, how can every Hajj pilgrim contribute to making their Hajj more environmentally friendly? Below are a few easy, yet effective, ways to make your Hajj sustainable: 1. Reducing the Use of Plastic Single-use plastics are one of the biggest sources of … Continue reading →

Natural Cooling with Evaporation and Night Sky Radiation

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Nowadays, architects, engineers and designers are ignoring the potential value of the most basic principles of natural cooling: Solar control (shade) Convective cooling Conductive cooling Evaporative cooling Radiant cooling In the first part of the article, solar control, convective cooling and conductive cooling were discussed in detail. When they cannot provide enough cooling then we may have to make use of evaporation. Evaporative Cooling The hottest areas tend to be dry and are ideally suited for evaporative cooling if water is available. When water is limited it can be used sparingly for just personal cooling. In general, direct evaporative cooling … Continue reading →

عادات سهلة صديقة للبيئة للطلاب: كيف تحدث فرقاً

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لم تعد الاستدامة مسألة اختيارية. فمع خطر التغير المناخي والتدهور البيئي الذي يهدد العالم، يجب على الناس الآن تطوير ميولهم الخضراء لعكس تأثيرهم. ويتحمل الطلاب على وجه الخصوص مسؤولية كبيرة في جعل العالم أكثر استدامة. فمن خلال غرس عادات خضراء بسيطة في الحياة اليومية، يمكن للطلاب أن يقللوا من آثار الكربون الخاصة بهم أثناء تقديم مثال يحتذي به الآخرون ويتبعونه. اختيار وسائل النقل المستدامة أحد أسهل الأشياء التي يمكن للطلاب القيام بها لضمان الاستدامة هو اختيار وسائل نقل أكثر مراعاة للبيئة. فبدلاً من قيادة السيارة أو استخدام خدمات النقل، يمكن للطلاب المشي أو ركوب الدراجات الهوائية أو المشاركة في رحلات … Continue reading →

7 Methods To Reduce Heating And Cooling Costs At Your Home

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Did you know that your AC can increase your home’s energy consumption by nearly 50%? And are you aware that you can lessen the impact of the air conditioner by doing some major or minor changes in and around the home? You can achieve reduce heating and cooling expenses at your home by following these seven steps: 1. Invest in a Programmable Thermostat When it comes to saving money when trying to heat and cool your home, you will benefit more from investing in a programmable thermostat. It is not uncommon to forget turning off the system or set the … Continue reading →

Staying Cool with Natural Cooling – Traditional Natural Cooling Techniques

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Natural cooling is particularly important as an economical method of keeping people comfortable and safe from extreme heat even in areas where there is no electricity or when the power grid fails. It also helps reduce peak loads and lowers the stress on generation and distribution systems. Natural cooling has been utilized for centuries and has only recently been ignored, most obviously since 1950, as mechanical air conditioning and electricity became artificially cheap. As a result architects, engineers and designers began to ignore the potential value of even the most basic principles of natural cooling. The traditional cooling methods are: … Continue reading →

كيف نجعل الحج صديقًا للبيئة؟

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مع اقتراب موسم الحج، يتجه ملايين المسلمين من أنحاء العالم إلى مكة المكرمة لأداء مناسكهم المقدسة. وفي ظل هذا التجمع الإيماني الهائل، تبرز أهمية الحفاظ على البيئة والاهتمام بالاستدامة، انطلاقًا من تعاليم الإسلام الذي تحث على حماية الأرض وعدم الإفساد فيها. فكيف يمكن لكل حاج أن يساهم في جعل حجه أكثر صداقةً للبيئة؟ تقليل استخدام المواد البلاستيكية عدّ المواد البلاستيكية أحادية الاستخدام من أكبر مصادر التلوث خلال موسم الحج. ملايين الأكواب والأكياس تُستخدم ثم تُرمى، مما يؤدي إلى تراكم كميات هائلة من النفايات. يمكن لكل حاج أن يحمل زجاجة ماء قابلة لإعادة التعبئة، وأدوات طعام شخصية مثل ملاعق وشوك مصنوعة … Continue reading →

The Important Role of Renewable Energy in Rural Development

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Several years ago, it was coal that brought a great deal of the progress needed in the rural areas. Much have changed over the years. With the advancement of energy technologies, going back to mining and processing coal no longer makes much sense. Politicians who promise to bring back coal-related jobs simply don’t have a grasp of reality. Advanced economies are already turning to renewable sources of energy and it makes sense for developing economies to do the same, unless they’re limited by urgency that they have nothing but cheaper fossil fuels to exploit. Of course, it’s not enough to … Continue reading →