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International

DODGING DAY ZERO IN CAPETOWN: “The next step comprises the management of all water within the urban water cycle. A key component of this is rain and stormwater harvesting, which offers great growth opportunities,” stated Deputy Mayor Ian Nelson


“The City has already initiated steps towards the goal of becoming a water-sensitive city by 2040. In the City’s draft water strategy, which will be taken through an inclusive public participation process over the coming months, the use of rain and stormwater is included,” stated Ian Neilson. The first step in being able to use stormwater as a water resource was to move stormwater and river management out of the City’s transport department and into the water department. This has already been done, added Nielson.

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Towards a Water-Resilient Future (Video): Released by the Senate of Berlin in August 2017, the plan “StEP Klima KONKRET” seeks to mimic nature and tackle extreme conditions by making Berlin a “Sponge City”


Heat waves and rainstorms will become common in northern Germany as climate change deepens. To make Berlin more resilient and livable in the coming future, Berlin’s infrastructure is being redesigned to solve drainage and heat problems as climate change accelerates. Rummelsberg, built 20 years ago in east Berlin, has become a large-scale example of the Sponge City concept. Heiko Seiker is the brains behind the neighbourhood’s innovative use of rainwater as a resource.

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As the driest inhabited continent, Australia has pioneered the best practices when it comes to management of water


“Despite some state government opposition, there is a great case for making stormwater resources that hit the ground on the property of local councils. This could incentivise councils to treat, harvest and sell water resources to industries or direct to citizens for non-potable uses,” stated Grant Duthie. “If water authorities were required to engage councils, as the owners of stormwater resources, there would likely become far more incentive to co-develop WSUD principles.”

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Rainwater Management in Australia: "The benefits of source control cannot be understated," stated John Argue, champion for Water Sensitive Urban Design


“The genesis of this approach lies at the point where rainfall strikes an urban environment surface, where it can be captured via rooftop gardens and water tanks under a notion of retaining water as opposed to having it wash away,” says John Argue. “Water which is not captured by these practices can potentially be infiltrated into the soil or be channelled through vegetated bio retention systems or rainwater gardens.”

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Leading Change in Australia: "Why best practice is destroying our waterways," explains Rod Wiese


“This study explores the genuine desire to protect and enhance urban waterways through whole of water cycle measures having wide ranging benefits to community health and climate change resilience,” wrote Rod Wiese. “It is evident that ‘best practice’ falls dramatic short of effective waterway protection. Clearly, we need to manage volume and restore water balance pathways where rain falls.”

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Water, Land and Climate – The Critical Connection: How We Can Rehydrate Landscapes Locally to Renew Climates Globally


“In considering the factors involved in global climate change, there is a need for increased attention to the role of regional, or small water cycles,” wrote Jan Lambert. “Planning is required for all countries to permeate landscapes with rainfall and snowmelt to bring about the return of stable regional, small water cycles to aid in local, and ultimately global, climate recovery.”

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Green Infrastructure in the United Kingdom: Landscape Institute calls for landscape-based solution in addressing the challenges of the 21st century


“We need to look at the larger catchment management issues and how forestry, land management and soft engineered flood alleviation schemes can hold back water in the upper reaches of rivers. We need to comprehensively retro-fit Sustainable Drainage Systems (SuDS) and require it to be used for all new building schemes,” stated Sue Illman.

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VIDEO: Ever Wondered Where the Rain Goes?


“Whilst sustainable drainage is a relatively simple concept, it is often communicated using technical jargon. This animation helps promote sustainable drainage by communicating the drivers, opportunities and benefits in an engaging way,” stated Paul Shaffer. The animation explains how Sustainable Drainage Systems (SuDS) replicate natural drainage by managing rainfall close to where it falls. It also celebrates the multiple benefits of SuDS .

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