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CitiesWithNature

A unique initiative that recognizes and enhances the value of nature in and around cities across the world.

Nature provides diverse life-supporting and life-enhancing contributions to people in cities and towns. These gifts from nature make human life both possible and worth living. All cities critically depend on healthy interconnected ecosystems within around them, so it is essential that nature is fully integrated into urban planning and development. There is a growing urgency for collective and large scale action to protect the biodiversity in and around cities to prevent irreversible loss and damage to the natural systems we depend on.
CWN values

CWN values

Sustainable building materials

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Extracting, producing and transporting building materials relies on energy and water. Materials with lower embodied energy and water reduce dependence on natural resources significantly. Sustainable materials also contain fewer harmful chemicals, ensuring the safety of construction workers and occupants.

Cool roofs to reduce urban temperatures

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To reduce heat gain on hot days, roof overhangs provide shade to windows and keep interiors cool during the midday sun.

Rainwater harvesting

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By having an effective rainwater harvesting system, cities can increase water security and reduce vulnerability to flood impacts.

Natural ventilation

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Being able to open windows can considerably reduce the energy consumption of buildings for cooling appliances, reduce energy bills and improve indoor environmental quality for building occupants.

Energy efficient street lighting

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Street lights have an estimated 40-70% electricity saving potential if they employ energy efficient technology. This also provides savings in operational costs for the municipality.

Local food production

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By 2050, 80% of food will be consumed in urban areas. Local food production can regenerate natural resources, eliminate waste and avert harmful environmental degradation from either long transport distances or unsustainable packaging.

External shading to cool buildings

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Blocking the sun from reaching building surfaces without compromising natural light is more efficient than cooling the interior once the heat has entered the building. Awnings, trees or flexible devices allowing for seasonal weather changes can achieve this.

Secure bicycle facilities

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Promoting more non-motorised transport corridors positively influences the safety and liveability of cities’ streets, which in turn can stimulate local business and sales tax revenues. The co-benefits are numerous, from healthier citizens (freeing up resources for state health facilities) to congestion relief.

Integrated mobility ticketing system

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Allowing citizens to travel on different modes of transport with one ticket allows more people to use public transport, which reduces the use of private vehicles. Such a system enhances the ease, flexibility and efficiency of the service.

Energy efficient eco-logistics

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More efficient freight and logistics can positively impact the intertwined network of private sector actors – from property development to waste management and more. Decarbonising freight could yield trillions of dollars in global economic benefits.

Energy efficient building systems

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Globally, buildings account for up to 70% of a city’s electricity consumption and 40% of carbon emissions. The growth of highly efficient and net-zero new and existing buildings has huge potential in reducing costs and carbon emissions.

Water efficient fittings

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Water demand management can often be significantly improved by installing fittings which prevent wasteful use of water. Existing standards and specifications can guide consumers’ choice in selecting fittings.

Wastewater reuse

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Reusing wastewater can lead to huge savings, especially when high quality wastewater is reused to meet low-quality water needs. On an industrial scale, the ability to reuse wastewater makes a city far more resilient to sudden shocks in water supply.

Terrace steep hillsides for safe agriculture and settlements

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Terraced hillsides are time-tested ways of both reducing erosion and surface run-off and they deliver efficient irrigation to certain crops.

Reforestation and sustainable forest management

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Urban greenery and protected forests have an array of benefits, including soaking up pollution and dust, restoring ecosystems and ecosystem services, bio-sequestration of carbon emissions and a sustainable timber industry.

Decentralised energy systems using microgrids

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Microgrids offer an affordable and low-carbon option for ensuring energy security. If frameworks are in place, consumers could sell excess electricity back into the grid. Where frequent blackouts occur, this offers stability for small businesses and low-income households.

Protect wetlands to allow for groundwater recharge

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Extensive paving in cities prevents rainwater absorption and groundwater recharge. By having recharge points like green spaces and wetlands, stagnant water, which cannot enter the ground due to the built environment, can then be absorbed.

Well-managed ecological coastal defenses

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Coastal defenses, especially in Low Elevation Coastal Zones, can play a large role in mitigating flooding and erosion. Ecological coastal defenses can protect coastal communities while simultaneously avoiding the negative flow effects often found with hard infrastructure.

Protect and restore coral reefs for storm surge protection

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Coral reefs act as natural buffers, protecting shorelines from waves, storms and floods. This in turn enhances the resilience of coastal communities – their infrastructure, industry and property.

Materials recovery facilities at landfills

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Recycling paper, glass, plastics, metals, e-waste and construction waste yields many benefits – from job creation and access for Small, Medium and Micro-sized Enterprises (SMMEs), to cleaner natural resources and a prosperous, circular economy.

Access to affordable fresh produce

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Improving access to fresh produce enhances health equity and sustainability and addresses the imbalance of wasted food resources in consumption-heavy areas and undernutrition in others.

Permeable paving

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Constructing permeable paving has a significant economic benefit in terms of combatting sewer overflows or runoff events during storms. Permeable paving slows, filters and consumes rainfall, making a city less vulnerable to flooding.

Allow for infiltration to reduce urban flooding

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With greater urban expansion, the reduced space for infiltration can have degrading effects on urban soils, thereby leading to frequent flooding during rainy seasons.

Parks to reduce urban heat island effect

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Urban parks can have significant cooling effects, depending on their shape and size, and the plant species they contain. They can be effective ways of disrupting the accumulated heat absorption of asphalt and associated increases in ozone production.