Quantitative assessment of sewer overflow performance with climate change in northwest England

Changes in rainfall patterns associated with climate change can affect the operation of a combined sewer system, with the potential increase in rainfall amount. This could lead to excessive spill frequencies and could also introduce hazardous substances into the receiving waters, which, in turn, would have an impact on the quality of shellfish and bathing waters. This paper quantifies the spilling volume, duration and frequency of 19 combined sewer overflows (CSOs) to receiving waters under two climate change scenarios, the high (A1FI), and the low emissions (B1) scenarios, simulated by three global climate models (GCMs), for a study catchment in northwest England. The future rainfall is downscaled, using climatic variables from HadCM3, CSIRO and CGCM2 GCMs, with the use of a hybrid generalized linear–artificial neural network model. The results from the model simulation for the future in 2080 showed an annual increase of 37% in total spill volume, 32% in total spill duration, and 12% in spill frequency for the shellfish water limiting requirements. These results were obtained, under the high emissions scenario, as projected by the HadCM3 as maximum. Nevertheless, the catchment drainage system is projected to cope with the future conditions in 2080 by all three GCMs. The results also indicate that under scenario B1, a significant drop was projected by CSIRO, which in the worst case could reach up to 50% in spill volume, 39% in spill duration and 25% in spill frequency. The results further show that, during the bathing season, a substantial drop is expected in the CSO spill drivers, as predicted by all GCMs under both scenarios

Ethnicity and alcohol: a review of the UK literature

This literature review draws together recorded drinking patterns among minority ethnic groups in the UK over the last 15 years and considers the evidence for service provision and support. A recommendation in implementing the Government’s alcohol strategy, Safe. Sensible. Social. is to assess the need for and develop provision for black and minority ethnic groups. This need is heightened by the growing minority ethnic population and changes in consumption levels that may emerge over generations. The review explores differences in drinking patterns by ethnicity and the cultural and social contexts around which the use of alcohol is established and maintained. This review: • describes drinking levels as reported in national surveys and local research; • considers processes and infl uences that help to explain why drinking rates among ethnic groups in a new country may change over time; • examines help-seeking, support and service provision for minority ethnic groups; • examines the extent to which services are equipped to respond to the needs of minority ethnic groups

"But no one told me it’s okay to not drink": a qualitative study of young people who drink little or no alcohol

Young people’s drinking is a matter of social, media and political concern and the focus of much policy activity within the UK. Little consideration has been given to the fact that some young people choose to drink little or not all and our knowledge and understanding of their choices and how they manage not drinking is limited. Nor has much attention been paid to the possibility that the insights of young light and non-drinkers could be useful when thinking about how to change the prevailing drinking culture, but if we are to gauge and engage with the current culture of consumption then we need to understand all parts of it (Pattenden et al., 2008). This qualitative study of young people (aged 16-25) who drink little or no alcohol aimed to further understanding of their lives and choices. The results highlight that choosing not to drink or drink lightly is a positive choice made for diverse reasons with the strongest messages and influences coming from real life observations. Young people develop strategies to manage not drinking or drinking lightly. Alcohol education messages need to present not drinking as a valid option to young people, parents and society more broadly

Teenage drinking and interethnic friendships.

This report explores the links between young people’s interethnic friendships and their drinking patterns and behaviours. Britain is a multicultural society, but little is currently known about if, and how, young people mix with friends from different ethnic backgrounds and the potential impact of this on drinking attitudes and behaviours. Research was undertaken to examine these links using quantitative and qualitative methods among a sample of 14-and 15-year-olds in diverse locations in London and Berkshire. The report: • explores the intra- and interethnic mix of young people’s friendship groups as described by young people in questionnaires and interviews; • analyses how drinking patterns vary by ethnicity, religion and gender; • investigates the links between young people’s background characteristics, their friendship groups (including the ethnicity of friends) and their reported drinking rates; and • looks at the implications of the findings, including recommendations for harm reduction based on education and peer support programmes