JOURNAL ARTICLE

Public health impacts of city policies to reduce climate change: findings from the URGENCHE EU-China project

Clive E Sabel, Rosemary Hiscock, Arja Asikainen, Jun Bi, Mike Depledge, Sef van den Elshout, Rainer Friedrich, Ganlin Huang, Fintan Hurley, Matti Jantunen, Spyros P Karakitsios, Menno Keuken, Simon Kingham, Periklis Kontoroupis, Nino Kuenzli, Miaomiao Liu, Marco Martuzzi, Katie Morton, Pierpaolo Mudu, Marjo Niittynen, Laura Perez, Denis Sarigiannis, Will Stahl-Timmins, Myriam Tobollik, Jouni Tuomisto, Saskia Willers
Environmental Health: a Global Access Science Source 2016 March 8, 15 Suppl 1: 25
26960925

BACKGROUND: Climate change is a global threat to health and wellbeing. Here we provide findings of an international research project investigating the health and wellbeing impacts of policies to reduce greenhouse gas emissions in urban environments.

METHODS: Five European and two Chinese city authorities and partner academic organisations formed the project consortium. The methodology involved modelling the impact of adopted urban climate-change mitigation transport, buildings and energy policy scenarios, usually for the year 2020 and comparing them with business as usual (BAU) scenarios (where policies had not been adopted). Carbon dioxide emissions, health impacting exposures (air pollution, noise and physical activity), health (cardiovascular, respiratory, cancer and leukaemia) and wellbeing (including noise related wellbeing, overall wellbeing, economic wellbeing and inequalities) were modelled. The scenarios were developed from corresponding known levels in 2010 and pre-existing exposure response functions. Additionally there were literature reviews, three longitudinal observational studies and two cross sectional surveys.

RESULTS: There are four key findings. Firstly introduction of electric cars may confer some small health benefits but it would be unwise for a city to invest in electric vehicles unless their power generation fuel mix generates fewer emissions than petrol and diesel. Second, adopting policies to reduce private car use may have benefits for carbon dioxide reduction and positive health impacts through reduced noise and increased physical activity. Third, the benefits of carbon dioxide reduction from increasing housing efficiency are likely to be minor and co-benefits for health and wellbeing are dependent on good air exchange. Fourthly, although heating dwellings by in-home biomass burning may reduce carbon dioxide emissions, consequences for health and wellbeing were negative with the technology in use in the cities studied.

CONCLUSIONS: The climate-change reduction policies reduced CO2 emissions (the most common greenhouse gas) from cities but impact on global emissions of CO2 would be more limited due to some displacement of emissions. The health and wellbeing impacts varied and were often limited reflecting existing relatively high quality of life and environmental standards in most of the participating cities; the greatest potential for future health benefit occurs in less developed or developing countries.

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