Green walls, also known as vertical gardens, have numerous benefits for indoor spaces, including air purification, temperature regulation, and mental health improvement, making them a worthwhile consideration for environmental design and architecture.

The installation of green walls can reduce nitrogen dioxide by 40%, suspended particulates by 60%, and indoor fine particulates by 10%, while also reducing ozone by 30% and indoor temperature by 1.8 ℃, creating a healthier and more comfortable environment.

Green walls can last up to 25 years with minimal maintenance, require minimal watering, and ensure ultra-low maintenance, making them a sustainable and long-lasting option for residential and commercial clients.

The choice of plants for green walls is crucial, and plants such as lily bamboo, hydrangea, and ivy are suitable for use in these systems, as they are low-maintenance and can thrive in a variety of conditions.

In addition to their environmental benefits, green walls can also improve mental health and well-being by providing a natural and calming environment, reducing stress levels and anxiety.

The maintenance needs of green walls are relatively low, with selected plant species requiring minimal upkeep, and automatic sprinkler systems can be used to maintain the ecology of green walls, making them a convenient option for busy spaces.

Green walls can be custom-designed to suit specific design needs, and their modular system allows for quick installation, making them a flexible option for different building types.

Subsidies for green walls are available, ranging from 3,000 to 6,000 yuan per square meter, with a single subsidy ceiling of 400,000 yuan, providing financial incentives for implementation.

The integration of green walls with building systems, such as HVAC and plumbing, can minimize energy consumption and reduce water waste, making them a valuable component of sustainable building design.

Overall, green walls are a valuable addition to indoor spaces, providing numerous benefits for environmental sustainability, public health, and mental well-being, and their successful implementation in various climates demonstrates their potential to improve urban environments.

Green walls, also known as vertical gardens, have numerous benefits for indoor spaces, including air purification, temperature regulation, and mental health improvement, making them a worthwhile consideration for environmental design and architecture.

Title:

Content: Health
2022-05-02 11: 30: 00
Anti-aging _ Green environment helps fight cognitive impairment
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Decreased cognitive function is an inevitable phenomenon of aging. If the function decline is serious, it can form cognitive impairment, which has a serious impact on daily life.
A study in the United States has found that increasing greening equipment in residential areas can help reduce depression in middle-aged women, thereby improving their cognitive function and helping to prevent the occurrence of cognitive impairment.
Antidepressant as main cause
The study, led by the Boston University School of Public Health, analyzed data from nearly 13,600 women with an average age of 61 between 2014 and 2016, including mental activity speed, attention, learning and working memory.
After adjusting for factors such as age, ethnicity and economic conditions, it was found that the amount of green environment near home was related to mental activity speed and attention, while learning or working memory was not affected.
The study also found that the main reason why greening improves cognitive function is its antidepressant effect.
The study was published in JAMA Network Open.
Good for mental health
The study author Dr.
Marcia Pescador Jimenez points out that nature ’ s health benefits are mainly to help us relieve psychological stress, and that being outdoors and interacting with people are good for mental health.
This study provides further evidence that greening helps maintain cognitive function and can be used as a justification for expanding urban greening.
Researchers are conducting research using deep learning algorithms and streetscape images to understand which plant species can bring greater health benefits.
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Content: Planting, Watering and Healing: Surprising Health Benefits of Indoor Plants

The grass isn't always greener. Since the early 80's, scientists have studied the biophilia hypothesis – that seeing plants is beneficial to our physical and mental health. With increased urbanization, exacerbated by lockdowns due to a global pandemic, it's becoming harder and harder to ‘go out and get some air.'

The indoor plant market, already spiking in 2019, continues to surge – expected to grow exponentially in the coming years.

A study released by Data Bridge Market Research estimates the indoor plant market will reach $26.23 billion by 2029. The physical and mental health benefits of succulents and other indoor houseplants are important factors.

Many people may be surprised to discover the lesser-known benefits of indoor gardens, but experienced horticulturalists and gardeners have been advocating for the expansion of home gardens for decades.

Stress and Anxiety Reduction

The addition of real or artificial indoor plants has become a standard practice in many offices, hospitals, schools, and other institutions. According to researchers, just seeing a living plant in the otherwise sterile hospital waiting room environment has been shown to reduce stress levels.

In another study, subjects were asked to repot a living plant or complete a computer-generated task. Those who handled the plants reported feeling more at ease and also experienced lower blood pressure. Participants who performed the computer-based task reported higher levels of anxiety and elevated blood pressure.

Maria Failla, Garden Expert and host of the Growing Joy with Plants podcast, shares, “When I was struggling with depression, it was helpful for me to keep plants indoors that helped me get out of my head and drop into the present. I'd see how many senses I could engage while taking 3 mindful breaths alongside my plants. Scented plants like herbs and geraniums are amazing for this. I love the rose-scented geranium for its romantic scent and the fuzzy leaves I could rub, pinch and take deep inhales with.”

Speed Up The Healing Process

A number of indoor houseplants, such as snake plants, orchids, and spider plants, have natural air purification qualities. Others improve a room’s humidity level or deliver a soothing fragrance. Microgreens also provide essential nutrients, making them ideal for patients in recovery.

Even seeing an indoor houseplant can improve a recovering patient’s mental and emotional state. One study concluded that installing indoor gardens in hospital rooms and public areas positively impacted overall recovery times and patient satisfaction.

Improve Mood During Isolation

The COVID-19 pandemic and subsequent household quarantines created a spike in indoor plant sales as many consumers discovered the natural air purification benefits of succulents and other plant species. Indoor gardening also provided isolated households with an activity that could be performed safely while under quarantine.

A study conducted in Bulgaria concluded that participants who maintained a home garden or raised houseplants had fewer incidents of anxiety or depression during enforced lockdowns than others who did not invest in plants or other greenery.

Cassidy Tuttle, gardening expert and owner of Succulents and Sunshine, observes, “Succulents are great plants for people who have depression. They don't require as much work as other plants, so they can tolerate the ups and downs that frequently come with depression. They stay looking healthy even if they're not watered regularly. Haworthiopsis fasciata, Zebra Plant, is an especially good option for indoor plants because it doesn't require a lot of light or water.”

Best Entry-Level Houseplants For Starting Indoor Gardens

Annie Schreck, Research Director at Mountain Crest Gardens, offers some insights and recommendations for beginners. “At Mountain Crest Gardens, we hear back from customers all the time that filling their homes and offices with succulents brightens their mood every day. The studies I have seen in this realm indicate that having plants around can correlate with improved student performance in classrooms and reductions in stress and sick days in workplaces. I certainly hope more researchers investigate these complex human-plant interactions.

Schreck adds, “There’s something about having other living creatures in a room that makes it feel cozy and inviting. Caring for them and seeing them respond is just so rewarding. And the great thing is, everyone gets to explore which varieties lift their mood the most! If you’re not sure where to start, I’d recommend indoor succulents like Haworthia, Jade plants, and Gasteria.”

Snake Plants

Snake plants (Sansevieria trifasciata)—also known as mother-in-law’s tongue— are thick-leaved succulents prized for their resilience and tolerance for drought. They grow well under low-light conditions, which makes them ideal for indoor gardens and room decor.

One major health benefit of snake plants is natural air purification. This goes beyond the standard absorption of carbon dioxide, however. Snake plants also remove and filter toxic gases such as benzene, xylene, and formaldehyde. They are also said to reduce headaches, improve respiration, and reduce eye irritations.

Microgreens

Microgreens such as broccoli, cabbage, and kale offer a wide range of health benefits, and their compact size makes them ideal for indoor gardens, especially hydroponics. Microgreens and fresh herbs provide home gardeners with flavorful aromatics and salad ingredients.

Among the many health benefits associated with microgreens are blood sugar regulation, vision protection, body weight reduction, and protection from anemia. Growing microgreens is also a highly recommended activity for those recovering from substance abuse since the plants provide the nutrition many addicts lack.

Orchids

While some orchid varieties have earned a reputation for being a challenge to grow, there are many varieties that require only minimal to moderate care. Besides their exceptional qualities as flowering plants, orchids are also natural air purifiers and oxygen generators. As part of a floral arrangement or as individual blooms, orchids have been shown in studies to reduce stress and improve mood.

Orchids are also recommended for people with sleep issues since the plant’s significant oxygen generation and aesthetic qualities both help create more soothing conditions at bedtime and during overnight hours.

Spider Plants

Spider plants have become popular houseplants for first-time home gardeners because of their child and pet-friendliness, ease of propagation, and exceptional air-purifying qualities. Beginning gardeners only need a small cutting from an existing spider plant to start their own projects.

The trailing leaves of a spider plant make it ideal for hanging baskets, a popular growing technique for limited spaces. The plant also raises the room’s humidity level, which helps address respiratory issues triggered by dry air conditions.

Peperomia Plants

 Because of their ability to thrive in drafty, dark, and humid locations in the home, peperomia plants are often referred to as “radiator plants”.  Peperomia plants are succulents, which means they are naturally resilient to abuse and require minimal maintenance.

Tinctures and other products derived from peperomia plants are used to address a range of medical ailments, including headaches, rheumatoid arthritis, and kidney issues. The plant also has antifungal and antioxidant properties.

Jade Plants

Another popular succulent for indoor gardens is the ornamental and medicinal jade plant. The jade plant’s distinctive round leaves have become associated symbolically with the acquisition of money and wealth. The jade plant’s appeal goes beyond the ornamental, however.

Products derived from the juice of the jade plant have been used in many cultures for the treatment of ailments including diabetes, skin wounds, digestive issues, and warts. In traditional Chinese culture, the presence of a jade plant also improves the flow of chi, or life force.

This article was produced by Media Decision and syndicated by Wealth of Geeks.

Title:

Content: Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi City, Chiayi County, Chiayi
The school received an environmental subsidy of NT $220,000 two years ago to plant large Dumbo flowers to form a green wall, which helps to cool down the temperature and purify the air, and also to install an automatic sprinkler system to maintain the ecology of the green wall.
According to the Environmental Protection Bureau of Chiayi City Government, since 2019, the Environmental Protection Department has promoted the vertical air green wall project. Since 2019, three schools, including Xingjia, Jiabei Elementary School and Jiabei Elementary School, have installed climbing plants on the school's daughter wall and the balcony of the classroom.
The Environmental Protection Bureau of the Chiayi Municipal Government said that this year, the Environmental Protection Agency expanded the target of subsidies, in addition to the original subsidies of public middle school, public elementary school, public preschool institutions, public welfare groups, public facilities, environmental protection night market, civic activity center and other venues, air green wall subsidies of 3,000 to 6,000 yuan per square meter, single subsidy ceiling of 400,000 yuan.
According to the Municipal Environmental Protection Agency, according to the results of the study, vertical green walls can reduce the concentration of nitrogen dioxide (NO2), suspended particulates (PM10) by about 40% and 60%, but also reduce the concentration of indoor fine suspended particulates (PM2.5) by about 10%, ozone by about 30%, and indoor temperature reduction by about 1.8 ℃.
According to the city's Environmental Protection Bureau, the appropriate plant types are lily bamboo, firecracker red, Yunnan yellow carnation, turtle, Boston kidney fern, hydrangea, African pansy or panthera, and can be selected according to the space planning and installation requirements, so that the space is more beautiful.
# Green Wall # Cooling # EPB # EPD # Planting

Title:

Content: In order to improve the environmental air quality and let children learn with peace of mind, the Taichung Municipal Environmental Protection Bureau has continued to build a clean air green wall in the school. This year, 12 schools in Jianping Elementary School, Juren Elementary School and Chongde Elementary School have received subsidies from the Environmental Protection Department.
According to the Environmental Protection Bureau, through the installation of clean air green walls, indoor air quality can be improved. At present, space such as classroom corridors and flower stands outside the daughter wall in Taichung City can be planted, which can achieve the benefits of dust retention, air pollution absorption and temperature regulation.
In order to strengthen the protection of the school environment for children, the Taichung City Environmental Protection Bureau expanded the subsidy for the construction of a clean air green wall on the campus, and the current subsidy amount to 1.76 million yuan, with an area of 358 square meters.
The Environmental Protection Bureau stressed that currently selected plants that can purify the air and do not need to spend too much money and time to maintain include the Dragon Tubeh, the Junzi and Wu Bamboo, the Turtle, the Cannonflower or the Honeysuckle.
How good is the effect of clean air green wall?
According to international research, vertical clean air green walls can reduce the concentration of nitrogen dioxide (NO2) and particulate matter (PM10) by about 40% and 60%. In addition, green walls can also reduce the concentration of fine particulate matter (PM2.5) in classrooms by about 10% and the concentration of ozone (O3) by about 30%.
Green wall is the most natural and energy efficient air purification facilities, no need to plug in electricity, self-circulation, to achieve the purpose of air purification, can be called the "most environmentally friendly air purifier".
Chen Hongyi, director of the Environmental Protection Bureau, said that in addition to blocking outdoor pollutants and improving indoor air, the air green wall can also adjust the temperature and drive energy conservation and carbon reduction. Next year, Taichung City is expected to expand the subsidy target, including community activity centers, public kindergartens and environmental night markets.
# Green Wall # Air # Cleanliness # Campus # Environment

Title:

Content: 6 Easy Ways to Build an Indoor Garden
CHITING CHANG – HOMIFY
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Indoor plants are not only beautiful, they bring natural greenery to your room, they also have the function of purifying toxins in the air.
If you don ’ t have a large garden or balcony space to grow flowers and plants, you can still work on creating a small garden indoors.
Today ’ s idea book will teach you 6 simple ways to build an indoor garden.
After reading these methods, you should no longer be able to use the space limit as an excuse!
1. Palm Trees
If you want to plant a tree indoors, you must choose plants that can survive in low light conditions.
An atmospheric, tropical palm tree is the perfect choice.
If you have concerns about the frequency of watering and the temperature in the room, ask a professional for more details.
2.
Glass bonsai
Terrarium Installations
The Urban Botanist
Easy to handle, small glass potted plants are ideal for small suites or work desks! You can choose large glass containers, such as old light bulbs, fish tanks, candy cans, etc., then put a small stone as the bottom, spread the moss, and then put the soil.
The next step is to put your plants in the soil and then spread the moss.
When finished, you can put on your favorite decorations again, so that the simple glass potted plant is finished.
3.
Fill the walls with plants.
Green walls can be the most natural decoration in the home, and can also remove toxins from the air and improve the quality of life.
Although the idea is simple, building a green wall can be a tricky task, and if you are not confident in your DIY skills, you can consult with homify experts.
4.
Hang the plants on the wall.
Hanging Vintage Garden Tap Planter
ELLA JAMES
If the above green wall is a bit too much, then you can choose to hang plants on the wall.
If you don ’ t like the general method, you can follow the above example and choose the potted plants made of water taps, so that your potted plants can also be used as decorations in your home.
5.
Kitchen Spices
The easiest way to create an indoor garden is to plant the herbs you need.
Put your favorite herbs in the kitchen, in addition to making the kitchen full of green surprises, you can also let the vanilla smell in the air.
6.
Make your living space green
We love the concept of an indoor garden!
Put a wooden table on the plant of the tree, it becomes a unique tree table.
When guests come to visit, do you have the feeling of playing chess and making tea in the old banyan tree?
More Inspiration for Interior Decoration: 17 Simple and Affordable Ways to Make Your Home Better
Do you need someone to help you design or build your home?
Find a professional now!
Find out more about home design!

The installation of green walls can reduce nitrogen dioxide by 40%, suspended particulates by 60%, and indoor fine particulates by 10%, while also reducing ozone by 30% and indoor temperature by 1.8 ℃, creating a healthier and more comfortable environment.

Green walls can last up to 25 years with minimal maintenance, require minimal watering, and ensure ultra-low maintenance, making them a sustainable and long-lasting option for residential and commercial clients.

Title:

Content: Prince’s Landscape Pte Ltd Now Provides Singapore Properties with Vertical Green Walls

Prince’s Landscape Pte Ltd is famous for its vertical wall planters, green walls and flower backdrop in Singapore. The company caters to residential and commercial clients as well.

Singapore, 2023-Jan-04 — /EPR Network/ — Prince’s Landscape Pte Ltd, the leading landscaping company in Singapore is offering vertical green walls to commercial and residential properties. Whether it is a retail showroom or a high rise, the vertical green wall is an innovative approach towards introducing nature amidst the concrete jungle.

The company uses quality vertical wall planters, ensuring the healthy growth of the plants. These vertical walls are easy to maintain, assemble, install, disassemble, and reinstall. The technique used by Prince’s Landscape Pte Ltd ensures the user does not have to spend much time tending and taking care of the plants.

Along with green walls, the company also provides clients with exquisite flower backdrops in Singapore to complement the greenery around them. It’s a long-term investment as a green wall can last up to 25 years.

Vertical walls by Prince’s Landscape Pte Ltd come with some unique features:

  • Custom design to suit the client’s needs.
  • Minimal watering of the green wall plants.
  • Ultra-low maintenance ensured.
  • Quick installation due to a modular system.
  • Use of plants that can survive in a tropical climate.

Why choose a vertical green wall?

  • Reduces waste of energy.
  • Improves air quality.
  • Makes the structure sustainable.
  • The space becomes more fire-resistant.
  • Minimizes ambient noise.

The general installation cost for a vertical green wall by Prince’s Landscape Pte Ltd ranges between $200 per square meter and $1200 per square meter, depending on the design, the kind of plants used and the installation process.

About the company:

One of the oldest nurseries in Singapore, Prince’s Landscape Pte Ltd has 50 years of experience in the industry. Started out humbly as a flower shop, Prince’s Landscape Pte Ltd have evolved into a full-fledged landscape design and installation specialist.

Contact Details

Telephone: 65 6763 7000

Fax: 65 6892 2700

WhatsApp: +65 8838 3479

Email: buzz@prince.com.sg

Address: 53 Sungei Tengah Road, Singapore 698998

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The choice of plants for green walls is crucial, and plants such as lily bamboo, hydrangea, and ivy are suitable for use in these systems, as they are low-maintenance and can thrive in a variety of conditions.

In addition to their environmental benefits, green walls can also improve mental health and well-being by providing a natural and calming environment, reducing stress levels and anxiety.

The maintenance needs of green walls are relatively low, with selected plant species requiring minimal upkeep, and automatic sprinkler systems can be used to maintain the ecology of green walls, making them a convenient option for busy spaces.

Green walls can be custom-designed to suit specific design needs, and their modular system allows for quick installation, making them a flexible option for different building types.

Subsidies for green walls are available, ranging from 3,000 to 6,000 yuan per square meter, with a single subsidy ceiling of 400,000 yuan, providing financial incentives for implementation.

The integration of green walls with building systems, such as HVAC and plumbing, can minimize energy consumption and reduce water waste, making them a valuable component of sustainable building design.

Title:

Content: Reduce water and electricity bills.
What is a green housing unit?
- Sunrise Gate
Saturday 10 December 2022 2: 04 AM Cairo Cairo 24 °
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Reduce water and electricity bills.
What is a green housing unit?
Green Building
Mohammad Ala 'a
Published on: Saturday 10 December 2022 - 1: 47 am | Last updated on Saturday 10 December 2022 - 1: 47 am
The Social Housing and Real Estate Finance Support Fund aims to build 25,000 green housing units within two years in six cities: the Capital Gardens, New Obour, New October, 10th of Ramadan, New Aswan and Hurghada, according to the Fund ’ s CEO, Mai Abdul Hamid.
In statements to the African Union Conference on Housing, Mai confirmed the start of the implementation of a first set of green buildings in the city of Gardens of the capital, by a thousand units, explaining that it is an experimental model followed by a measurement of the impact of these units on the environment and energy saving in preparation for its dissemination, and adjustments, in the rest of the targeted sites.
The conference, which took place in Cairo a few days ago, witnessed the announcement that the “Green Architecture ” initiative, implemented by the Social Housing Fund, received the“ SHARKROOM ” award for the best innovations and initiatives in the field of housing across the continent, after competing with nine initiatives.
Green architecture reduces energy consumption by 24-50 per cent, carbon emissions by 33-39 per cent, water consumption by up to 40 per cent and solid waste by 70 per cent.
As for the specifications of the green building, Dr. Abbas Al-Zafrani, professor of environmental sustainability and urban planning at Cairo University, explained to Al-Shorouk that it provides energy during the construction and establishment process so that it does not use materials whose production consumes energy intensive, such as relying on red bricks instead of cement bricks.
He explained that the building saves energy consumption during living in it, instead of using aluminum and glass nets to store the sun throughout the day and the use of air conditioners later to discharge its heat, which consumes large energy and emits carbon emissions, can use a window of wood and an umbrella so the residence remains comfortable enough fan to moisturize it.
Zafarani added that the green building also conserves water, not using too much water, and reuses waste water to irrigate nearby gardens instead of pressuring utility networks.
The green building also does not dispose of rainwater in the sewage system, but rather stores it for reuse or for irrigation of gardens.
On the chances of its success in Egypt, he said: « Our old houses were mostly green, so you find the outer wall of the house within 25 centimeters and the windows are shish and glass and not aluminum, as they exist and successful ».
Al-Zafrani points out that the belief that green architecture needs higher expenses than ordinary architecture is not necessarily true, the most important thing from his point of view is to choose the right tools, explaining: "I can make very expensive window of double and triple glass and reflective layers of heat and pay per meter 5 thousand pounds, and I can make ordinary window shish and glass at a cheaper cost, and gives us almost the same result."
In turn, Dr. Hind Farouh, Professor of Environment and Sustainable Urban Development at the National Center for Housing and Building Research, said that the green architecture project takes into account the wind direction and ways to reduce heat, including the percentages of openings in the facades, and takes into account the energy efficiency code, and the reuse of gray water in the irrigation of gardens.
In a video about the project posted on YouTube by the Social Housing Fund, Farouh added: “It also relies on solar energy to feed services, and the thickness of the walls in the buildings is 25 centimeters, with the use of building materials that reduce heat transfer. ”
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Content: Expo 2020 Dubai

Expo 2020 Dubai: Singapore pavilion integrates nature within urban environments

WAM/Abu Dhabi
Filed on August 26, 2021
Source: Expo 2020 website

Green architecture to embody ethos of sustainable development

The Singapore pavilion at Expo 2020 Dubai puts green architecture at the forefront to help visitors appreciate the benefits and possibilities of integrating nature within our urban environments.

Layered with a showcase of greenery, digital solutions and art, the pavilion exemplifies Singapore's vision of becoming a City in Nature, and ethos of sustainable development via innovative and impactful urban solutions.

Yap Lay Bee, Deputy Commissioner-General of the Singapore pavilion and Group Director, Architecture & Urban Design Group at the Urban Redevelopment Authority, said, "The Singapore Pavilion demonstrates the potential to push the envelope to integrate nature, architecture and technology through various design strategies and digital elements.

"We wish to invite visitors to contemplate their relationship with nature as they explore the pavilion's green, digital ecosystem and its artistic representation of the pavilion's integrated system of greenery, water and energy management. In doing so, visitors will be able to appreciate the challenges in realising the Singapore pavilion, and the ways we can co-exist with our natural and built environment, where both people and ecologies are cared for."

The pavilion takes into account the local environment within its Rainforest Cone and the Flower Cone areas to sustain rainforest plants. The growth of the multitude of plant varieties despite the ground conditions demonstrates the possibility for such lush landscapes to thrive in different environments around the world while using renewable resources.

The pavilion also capitalises on technology to augment bold landscaping design. Caring for the varieties of plants within the pavilion is no easy feat, especially those on the curved green walls of the pavilion's iconic cones. To address this challenge, three prototype climbing robots will traverse the green walls around the Flower Cone to inspect the health of the plants, as well as to collect environmental data to monitor the performance of the pavilion's systems.

Visitors are invited to participate in a generative artwork at the Galleria that allows them to visualise the performance of the pavilion's integrated ecosystem and how it impacts the environment. The customised planting palette and innovative technological applications used in water and energy management are design strategies that enable the Singapore pavilion to achieve its net-zero energy target.

Preparations for the Singapore pavilion are at the final phase. Landscaping works have wrapped up and finishing touches are being made to the digital exhibits ahead of its opening on 1st October 2021. Various elements of the Singapore pavilion experience will also be presented on online platforms, given the current travel restrictions and safe management measures.

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Overall, green walls are a valuable addition to indoor spaces, providing numerous benefits for environmental sustainability, public health, and mental well-being, and their successful implementation in various climates demonstrates their potential to improve urban environments.

Title:

Content: Africa Has Its First Chief Heat Officer. Five Things Should Be On Her Agenda

24 February 2023
analysis

Freetown's heat officer can set an example to Africa and the world as temperatures and risks rise.

Eugenia Kargbo has an unusual job: she is the city of Freetown's chief heat officer. Her role in Sierra Leone's capital is the first of its kind in Africa. She has been tasked with raising public awareness about extreme heat, improving responses to heat waves, and collecting, analysing and visualising heat impact data for the city, which is home to 1.2 million people.

Freetown is increasingly threatened by dangerous temperatures. In 2017, the Intergovernmental Panel on Climate Change ranked Sierra Leone third, after Bangladesh and Guinea Bissau, on its list of countries most vulnerable to climate change.

The risks are concentrated in its capital and largest city, Freetown, where some 35% of the population live in 74 informal settlements like Kroo Bay, often in disaster-prone areas like the seafront or hillsides. Houses are densely built and typically temporary structures made of "heat trapping" materials. Services that supports cooling, such as water and electricity, are usually inadequate.

As an architect whose work includes researching ways to reduce heat in African cities, I think the creation of an Heat Officer position is a good move. The world's cities are almost all getting hotter and, as the Intergovernmental Panel on Climate Change has warned, temperatures will only keep rising.

But, while this is a global challenge, African cities are unique. The significant proportion of urban dwellers who are poor and those whose living conditions do not provide adequate shelter from the elements make the African context unique and deserving special attention.

With these realities in mind, here are five things I'd suggest should be on the agenda of both Kargbo and any other heat officer appointed elsewhere on the continent in future.

1. Take a diverse approach to urban greening

Nature-based approaches are a great way to address increasing temperatures linked to climate change. Scholars have established positive links between green infrastructure, temperature moderation and even health outcomes in African cities as well as elsewhere in the world.

This has informed a growing number of tree-planting initiatives and the development of urban parks. But it is important that municipalities move beyond only these kinds of spaces. African cities are becoming densely populated; that means less space will be available for greening initiatives on land.

Vertical systems of building (for example on walls, roofs, columns) and urban infrastructure (for example on bridges, road furniture) should be explored to make up for the lack of space on the ground.

In the last few years, I have led the design and development of experimental vertical gardens in low-income areas of Nigeria and Tanzania. We have shown that these vertical gardens reduce wall temperature of residential buildings by as much as 5°C in Dar es Salaam. The gardens have other benefits like providing fresh vegetables for household consumption. Similar ways of growing vegetation vertically have been seen elsewhere in the world, including in Mexico City.

2. Strengthen the link between heat and health

Exposure to extreme heat usually comes with health problems - and can even kill people, as I and many other scholars have documented. It exacerbates underlying health conditions.

One area of concern when it comes to the heat-health nexus in African countries is that mosquito numbers increase in higher temperatures. This means malaria and other diseases transmitted by mosquitoes might become significant problems for Freetown and other African cities.

These health problems are further complicated by the fact that many city dwellers across the continent can't access adequate and affordable health care. Community health initiatives within cities and efforts to ramp up health services in qualitative and quantitative terms must be integral to heat adaptation plans and actions.

3. Focus on early warning and improved awareness

It is far better to be proactive than reactive. Heat vulnerability patterns within Freetown and other African cities must be studied and used to make sense of weather predictions in order to inform warning systems.

In the warning systems, for example, an alert level can be triggered when the weather forecast shows three or more consecutive days with daytime maximum temperature and humidity above a threshold of, say, 30°C. Other levels of alerts can correspond with higher temperatures. This sort of system has been implemented in Toronto, Canada, with good outcomes. A recent study of urban areas in Ontario (the province where Toronto is located) shows that early warnings may have meant fewer heat-related illnesses severe enough to warrant hospital or clinic visits.

4. Encourage the transfer of knowledge

Cities can adapt to heat faster when they share knowledge and experiences. Some scholars argue that inter-city collaboration and knowledge-sharing can enhance municipalities' resilience and improve urban residents' skills to deal with heat-related issues.

Kargbo's work will generate many lessons that can be shared with other African cities; she, too, will learn from other cities' successes and failures.

5. Let locals lead

While there is plenty to learn from more developed countries outside Africa, it is important to also draw from local indigenous knowledge and practices. An examination of knowledge and awareness about climate-related and environmental problems in African traditional society shows there is much to be learned from indigenous systems.

Top-down approaches are not enough. They must be complemented by bottom-up approaches in the planning, funding, execution and assessment of heat adaptation initiatives.

Inclusion is also important because it shifts power to those who are most affected by heat - people living in low-income and informal areas are disproportionately affected. Involving them enhances the impacts of initiatives and interventions.

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Olumuyiwa Adegun is a Senior Lecturer, Department of Architecture, Federal University of Technology, Akure.

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Title:

Content: 7 Bioclimatic Façade Strategies for Tropical Architecture

When we think of the word "tropic," the image that typically comes to mind is an exotic space, characterized by perpetual warmth and humidity, with frequent and heavy rainfall nurturing lush vegetation. Throughout history, this tropical climate has been romanticized as a paradise and criticized for potentially fostering weakness due to its perceived clemency.

Thankfully, those judgments and associations have been relegated to the past, paving the way for theoretical and practical projects that outline the advantages and disadvantages of living in a tropical climate. These projects acknowledge the various strategies to enhance human adaptability within these distinctive climatic conditions.

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Certainly, climate is the most pivotal element of the natural environment, as it impacts all geomorphological processes, from soil formation to plant growth. It's this profound interconnection that renders climate change so concerning. Hence, akin to how the natural environment reacts to climate, architecture must also be responsive to it.

In temperate climates, houses typically remain "closed" to shield occupants from harsh weather, retaining warmth. Conversely, in tropical climates, it's essential to "open up" the house to dissipate heat and humidity while shielding it from the sun and heavy rainfall. The abundance of tropical climate and vegetation often encourages outdoor living or greater interaction with nature. The main challenges in tropical architecture involve protecting against rain and direct sunlight, with a focus on strategies to regulate internal temperatures.

Bioclimatic strategies play a crucial role in achieving these objectives. They guarantee that buildings adapt to the local climate, boost energy efficiency, and enhance occupants' comfort. These strategies encompass principles and design techniques that leverage natural elements to establish sustainable architectures. By minimizing buildings' environmental impact and prioritizing occupants' well-being, these strategies collectively contribute to overall sustainability.

Since many of these strategies are implemented at the junction between a building's interior and exterior, we've listed below seven bioclimatic strategies and how they are applied to the facades of residential projects in tropical climates.

Shading Elements

Incorporating shade devices such as brise-soleil, cobogós, or other latticed structures on facades is crucial. These elements effectively block direct sunlight while allowing diffused light and natural airflow. This helps to minimize solar heat gain, reduce glare, and maintain comfortable indoor temperatures.

The Kenz House / Srijit Srinivas Architects

Casa Delta / Bernardes Arquitetura

Vegetation

Introducing vegetation on facades through vertical gardens, living walls, or planters can provide natural insulation, reduce heat absorption, and improve air quality. Plants also contribute to shading and evaporative cooling through transpiration, further enhancing thermal comfort and reinforcing the tropical ambiance within architecture.

Tropical Shed / Laurent Troost Architectures

Stepping Park House / VTN Architects

Ventilation Strategies

In tropical architecture, facades often incorporate operable windows or strategically positioned openings to facilitate cross-ventilation and natural airflow. This design approach effectively reduces humidity levels and improves indoor air quality.

Valley Expansion House / Studio Heya

OF House / Studio Otto Felix

Sun Orientation

Ensuring the correct solar orientation of buildings maximizes natural light penetration while minimizing solar heat gain. In tropical climates, designing buildings with a north-south orientation reduces direct sunlight exposure, particularly during peak heat hours of the day.

The House of Silence / Natura Futura Arquitectura

Country house in Puente Iglesias / Oficina de Arquitectura y Paisaje OAP + MDE estudio

Thermal Mass

Using materials with high thermal mass, such as concrete, stone, or adobe, in facade construction helps absorb and retain heat during the day. The heat stored during the day is gradually released at night, helping to stabilize indoor temperatures and reducing the need for mechanical cooling systems.

Discreet House / Jirau Arquitetura

Earth Farmhouse / Studio Verge

Reflective Surfaces

Using light-colored or reflective materials on facades helps minimize heat absorption by reflecting solar radiation. This reduces the need for cooling and helps mitigate the urban heat island effect.

Nagato House / RASA Architektura

House COVE(R) / TOUCH Architect

Adaptability

By integrating responsive facade systems like adjustable blinds or dynamic shading elements controlled by sensors or automation, buildings can adapt in real-time to environmental conditions. This real-time adjustment optimizes both energy performance and occupants' comfort.

Patio House / Caio Persighini Arquitetura

ABK House / Bernardes Arquitetura

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About this author
Cite: Ghisleni, Camilla. "7 Bioclimatic Façade Strategies for Tropical Architecture" [7 Estratégias bioclimáticas aplicadas nas fachadas da arquitetura tropical ] 10 Apr 2024. ArchDaily. (Trans. Simões, Diogo) Accessed . <https://www.archdaily.com/1015392/7-bioclimatic-facade-strategies-for-tropical-architecture> ISSN 0719-8884

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Content: Monday, 27 June, 2022, 1:59 AM
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Home Op-Ed

Greener cities are critical to regional sustainability

Published : Monday, 27 June, 2022 at 12:00 AM  Count : 73
SARA AL-MULLA

From megacities to metropolises, cities of all kinds are experiencing an unprecedented spectrum of threats associated with climate change, necessitating a serious debate on the importance of transitioning toward greener cities in order to remain sustainable and resilient.

Currently, those living in urban areas make up just over half the global population. But this figure is projected to increase exponentially to a whopping 68 percent by mid-century, according to the UN. The modern urban landscape poses complex challenges for cities, as they are vulnerable to climate-induced hazards that threaten their economies and infrastructures and the well-being of their residents.

An influential 2018 report titled "The Future We Don't Want" - published by C40 Cities, the Global Covenant of Mayors, Acclimatise and the Urban Climate Change Research Network - revealed the manifold threats that cities are facing and will continue to face in greater intensity as a result of climate change. The report stated that 70 percent of cities are already feeling the wrath of climate change in the form of heat waves, rising sea levels, wildfires, storms and droughts. The fact that 90 percent of urban areas are coastal also poses a significant vulnerability to flooding due to rising sea levels and mass destruction from tsunamis.

By 2050, more than 45 percent of the global urban population is projected to live in cities with extreme summer temperatures of at least 35 degrees Celsius, leaving residents susceptible to dehydration, heatstroke, sleep loss, stress, cardiovascular disease and even death.

Many cities are currently counteracting these challenges, such as the case with Seoul, which implements a number of successful interventions when temperatures reach 33 C for two consecutive days. They include advisories to residents with practical advice and guidance to employers about allowing their outdoor workers to take breaks. The city has also installed shaded cooling centers in public locations, planted 16 million trees and expanded its green space by 3.5 million sq m.

The urgency of addressing climate change in the Middle East and North Africa has never been more critical, with UN experts projecting an urbanization rate of 59 percent by 2030. The region is already fraught with high temperatures, droughts, limited rainfall and scarce agricultural lands, and it is considered among the most water-stressed regions in the world. Climate-induced water scarcity alone is projected to cost MENA countries as much as 6 percent of their gross domestic product by 2050, according to the World Bank.

All of these challenges have important policy implications for city governments on how to balance economic growth while reducing environmental impacts and maximizing population well-being. The International Finance Corporation estimates the climate-centered investment opportunity for the MENA region to be $1.7 trillion.

Many cities have already implemented a vast range of interventions to bolster their resilience and successfully transition into greener cities. Chief among these actions is establishing a dedicated agency to plan, coordinate and manage climate-related strategies across the country. Regular extensive assessments of vulnerabilities and climate-related risks will inform decision-makers on the urgent and critical interventions needed.

Cities should also upgrade their infrastructure to ensure resilience in the face of extreme climate events, such as the flooding of drainage systems. Shifting to climate-smart infrastructure is an important step toward reducing greenhouse gas emissions and conserving resources. For example, a number of cities are currently relying on renewable energy and solar energy to power large buildings.

Meanwhile, the government of Dubai has issued regulations for "green buildings" that elaborate on a number of climate-friendly solutions, including creating vegetated rooftops, reducing hazardous waste, limiting pollution and improving energy and water efficiency. Many cities are also experimenting with vertical forests, whereby a variety of plant species are grown on buildings, such as the ones in Milan, Kuala Lumpur, Singapore and Utrecht.

Investing in climate-efficient public transportation and promoting the uptake of hybrid or electric vehicles will offer cleaner alternatives to fuel-reliant vehicles that amplify air pollution. To illustrate, the city of Santiago in Chile invested in electric-powered public buses, which do not generate emissions and cost a remarkable 70 percent less to operate than diesel-fueled buses. In tandem, guidance should be issued to enterprises on how to decarbonize their operations and shift toward electrification and digital solutions.

Launching mass greening and reforestation projects across cities can yield a number of benefits, such as cooling them during summer months and improving biodiversity. This can be done by planting trees to line streets and boulevards and creating gardens, grassy areas, public parks, flowery meadows, miniature urban forests and allotments. For instance, many cities offer allotments for urban farming and recreational gardening projects managed by residents, with an abundance of evidence pointing to improved physical and mental well-being, in addition to the growth of local, seasonal and organic produce.

Additionally, many countries, such as the UAE and Singapore, are capitalizing on vertical farming projects to maximize agricultural yield while relying on climate-friendly solutions to efficiently utilize water and energy.

City governments should also be creative with their public education campaigns to nudge the desired behavioral changes by residents, focusing on recycling, metered consumption and the reduction of wastage. Furthermore, MENA countries should invest in cutting-edge research and innovations related to climate change, which will empower cities to navigate an uncertain future and adjust their climate action plans accordingly.

When imagining the cities of tomorrow, a rather ambitious idea should be explored to include sustainability. By transforming its cities into greener cities, the MENA region can navigate the coming decades with enhanced resilience and competitiveness.
Source: ARAB NEWS

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