Polluted air was responsible in 2015 for 6·4 million deaths worldwide. Can walking or cycling in polluted cities negate the health benefits of exercise by increasing exposure to airborne pollutants? This systematic review in The Lancet Public Health by Magda Cepeda and colleagues provides a clear answer to this question: it compares exposure to carbon monoxide, black carbon, nitrogen dioxide, and fine and coarse particles between commuters using active and motorised transport. The study provides important insights to support target SDG 3.9 to substantially reduce the number of deaths and illnesses from hazardous chemicals and air.

Sustainable Cities and Society, Volume 27, 2016, Pages 484-496, ISSN 2210-6707

World map of the 142 cities in the UrbMet database.
The sustainability of urban water systems is often compared in small numbers of cases selected as much for their familiarity as for their similarities and differences. Few studies examine large urban datasets to conduct comparisons that identify unexpected similarities and differences among urban water systems and problems. This work supports quantitative comparison of urban water sustainability. Cities were clustered to identify a typology of urban water management profiles. Clustering was based on per capita consumption, population, and annual water budget. This relates to SDG 6, 11 and 12.
This study used social indicators to assess stormwater management. There is a lack of awareness about environmental regulations related to fertilizer use. Social dimensions are crucial in sustainable stormwater management. This addresses SDG 6 and SDG 11.
London’s ability to remain a world-leading city in an increasingly globalised economy is dependent on it being an efficient, low-risk place to do business and a desirable place to live. This article provides a framework for adaptation planning in urban water supply systems relating to SDG 6 and SDG 11.

Sustainable Cities and Society, Volume 27, 2016, Pages 398-406

Water harvesting is an ancient practice that has been used, mainly in dry environments, to increase efficiency of water collection and use by directing water from a large natural watershed or man-made collection surface into a small basin where the water can be stored in underground reservoirs or to be used directly for irrigation or domestic uses. In modern era water harvesting has been neglected, particularly at the developed countries, due to the technological achievements in the fields of water production and transport. This relates to SDG 6 and SDG 11.
This paper uses ‘Medieval’ drought conditions from the 12th Century to simulate the implications of severe and persistent drought for the future of water resource management in metropolitan Phoenix, one of the largest and fastest growing urban areas in the southwestern USA. Anticipatory models enable long-term policy analysis for climate change. Mega-drought results in unsustainable groundwater use between 2000 and 2060. Aggressive drought management policies can produce sustainable yield. The time to manage droughts is before they occur. This relates to SDG 6, SDG 11 and SDG 13.

Sustainable Cities and Society,Volume 27,2016,Pages 419-429,ISSN 2210-6707

Shortages of freshwater have become a serious issue in many regions around the world, partly due to rapid urbanisation and climate change. Sustainable city development should consider minimising water use by those people living in cities and urban areas. The purpose of this paper is to improve our understanding of water-use behaviour and to reliably predict water use, highly relevant to SDG 6 and 11.

Sustainable Cities and Society,Volume 27,2016,Pages 439-447,ISSN 2210-6707

The study of resilience in the face of large physical and climatic change has emerged as an important area of research. But while the physical variables under study are easily identified, the notion of resilience itself remains nebulous. This poses a special challenge to water security in cities. The tensions are resolved when resilience is conceived of as a teleological concept that relates to the desired futures of the community.This study shows an empirical way to achieve this by using narrative analysis on the case of water security. Such a teleological concept can be used to resolve tensions pointed out earlier and give practical insights, related to SDG 6 and 11.

Sustainable Cities and Society, Volume 27, 2016, Pages 467-474, ISSN 2210-6707

Water recycling schemes are a viable solution to limitations on water supply and yet public acceptance of these schemes is low. Advancing SDGs 6, 11 and 12, research was conducted in three metropolitan areas in the US to assess basic perceptions of treated wastewater occurrence and its acceptance in the public water supply. De facto reuse occurs at rates across the three cities higher than what is perceived. Roughly 25% of respondents perceive de facto reuse to occur in their home tap water. Respondents who perceived de facto reuse to occur at their tap were ten times more likely to have a high level of acceptance.

Sustainable Cities and Society,Volume 27, 2016,Pages 448-456,ISSN 2210-6707

Water reuse networks have been emerging globally for the last 50 years. This article furthers SDGS 6 and 11 by reviewing the economic, social and environmental issues related to implementing water reuse networks in cities, with a focus on London, UK.