Global monthly water scarcity: blue water footprints versus blue water availability.

Freshwater scarcity is a growing concern, placing considerable importance on the accuracy of indicators used to characterize and map water scarcity worldwide. We improve upon past efforts by using estimates of blue water footprints (consumptive use of ground- and surface water flows) rather than water withdrawals, accounting for the flows needed to sustain critical ecological functions and by considering monthly rather than annual values. We analyzed 405 river basins for the period 1996-2005. In 201 basins with 2.67 billion inhabitants there was severe water scarcity during at least one month of the year. The ecological and economic consequences of increasing degrees of water scarcity--as evidenced by the Rio Grande (Rio Bravo), Indus, and Murray-Darling River Basins--can include complete desiccation during dry seasons, decimation of aquatic biodiversity, and substantial economic disruption.

Association between the Geriatric Giants of urinary incontinence and falls in older people using data from the Leicestershire MRC Incontinence Study.

OBJECTIVE: To determine whether urinary incontinence per se and different types of urinary incontinence individually are associated with an increased risk of falls in those aged 70 years and over. To investigate whether the presence of urinary symptoms, poor quality of life and physical limitations in this population with urinary incontinence is associated with falls. DESIGN: Study using data from the cross-sectional postal questionnaire undertaken in the Leicestershire Medical Research Council Incontinence Study. SETTING: Leicestershire. PARTICIPANTS: A total of 5,474 people aged 70 years or more living in the community randomly selected from general practitioners' lists. RESULTS: Urinary incontinence and both urge and stress incontinence were positively related to falls (P < 0.0001, P < 0.001 and P = 0.007, respectively). The larger the volume of urine lost, the greater the risk of falls (P < 0.0001). Falls were associated with the presence of urinary symptoms (P = 0.01 or less), physical limitations (P = 0.001 or less) and having a poorer quality of life (P = 0.004 or less) in respondents with urinary incontinence. CONCLUSIONS: An association has been shown between falling and urinary leakage including the previously unreported association with stress leakage. Falling and urinary incontinence were found to be associated with physical limitations and had an impact on quality of life.