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Municipal water conservation is increasingly promoted as a key dimension of environmental sustainability at the municipal scale. Progress toward municipal water conservation in Canada has, however, been poor. This paper examines the governance dimension of water conservation, and presents evidence in support of the argument that conservation efforts on the part of water utilities (and sometimes municipalities) are often constrained by factors external to their jurisdiction. To explore these issues, this paper presents a case study of municipal water conservation in Canada. The analysis identifies governance-related barriers to water conservation and explores the relationship between these barriers and broader issues stemming from the multi-scalar, fragmented nature of environmental governance in Canada.

There have been calls for increased investments in research in Canada to determine the extent of exposure and the associated health effects of environmental risks to child health. When allocating scare public health resources, decision makers often rely on cost-benefit analysis to determine whether specific expenditures will yield significant economic benefits by reducing adverse health outcomes. This article describes the elements required for an economic analysis of the environmental burden of disease among Canadian children. Such analysis would require reviewing the strength of the association between environmental exposures and specific adverse pregnancy outcomes and childhood diseases. Second, it would determine the prevalence of childhood diseases and conditions in order to estimate the total economic and social costs associated with the overall burden of childhood diseases in Canada. The next step is to determine how much of the overall burden of disease among Canadian children can be attributed to environmental exposures. Recent environmental burden of disease analyses in other jurisdictions have led to advancement in methodologies that could support this work in Canada. Finally, the economic and social costs attributable to the environmental burden of childhood diseases in Canada could be estimated. Estimates of the economic costs of environmentally related diseases can then be used to determine the appropriate level of investments in scientific research. This article argues for initial investments in establishing a biomonitoring program of children's and pregnant women's exposure to environmental chemicals, as well as a Canadian longitudinal cohort study on the environmental influences on child health and development.

Background: Since its founding in 1970, Canada's International Development Research Centre (IDRC) has supported research by concerned Latin American researchers on environments and human health relationships. Framing of such relationships has changed through different periods., Methods: Participant observation, bibliographic searches, document review, and interviews with key IDRC staff., Findings: From the early years of multiple different projects, IDRC developed more focussed interest in tropical diseases, pesticides, agriculture and human health in the 1980s. The United Nations Conference on Sustainable Development in the early 1990s gave impetus to examination of links between ecosystems and human health or "EcoHealth". Projects in Latin America built on earlier work but extended it in methods (transdisciplinarity, community participation, gendered approach) and scope (broader land use and development paradigm issues tackled). A key IDRC-funded activity in Latin America was "EcoSalud", an Ecuadorian effort, which has worked with farming communities, agricultural researchers, health practitioners and local politicians to advance integrated pest management, better recognize and treat poisonings and improve pesticide-related policies. ONGOING CHALLENGES INCLUDE: mobilizing sufficient resources for the primary prevention focus of EcoHealth activities when primary care infrastructure remains stretched, promoting micro-level change in diverse communities and ecosystems, and addressing power structures at the global level that profoundly affect environmental change.

Four outcomes that evidence suggests are candidates for "environmental causation" were chosen for analysis: diabetes, Parkinson's disease (PD), neurodevelopmental effects and hypothyroidism, and deficits in intelligence quotient (IQ). These are an enormous burden in the United States, Canada, and other industrial countries. We review findings on actual social and economic costs, construct estimates of some of the costs from pertinent sources, and provide several hypothetical examples consistent with published evidence. Many detailed costs are estimated, but these are fragmented and missing in coverage and jurisdiction. Nonetheless, the cumulative costs identified are very large, totaling $568 billion to $793 billion per year for Canada and the United States combined. Partial Canadian costs alone are $46 billion to $52 billion per year. Specifics include diabetes (United States and Canada), $128 billion per year; PD in the United States, $13 billion to $28.5 billion per year; neurodevelopmental deficits and hypothryoidism are endemic and, including estimates of costs of childhood disorders that evidence suggests are linked, amount to $81.5 billion to $167 billion per year for the United States and $2 billion per year in Ontario; loss of 5 IQ points cost $30 billion per year in Canada and $275 billion to $326 billion per year in the United States; and hypothetical dynamic economic impacts cost another $19 billion to $92 billion per year for the United States and Canada combined. Reasoned arguments based on the weight of evidence can support the hypothesis that at least 10%, up to 50% of these costs are environmentally induced--between $57 billion and $397 billion per year.

This work offers an overview of the state of the art and future state of environmental health in our country from a viewpoint of the impact of the commercial opening established in the Free Trade Agreement among Mexico, the USA, and Canada. In the first section of this work, we analyze the expected economic changes resulting from the implementation of the FTA and foretells the way in which those changes will influence the present environmental and epidemiologic profiles of this country in the medium and long term. The main changes predicted by the analysis are, in the epidemiologic context, the acceleration of the transference of occupational, consumption, environmental and population risks, characteristic of industrialized countries, to the country's polarized epidemiologic profile; and, in the environmental context, a transition consisting of a broadening and composition of the spectrum of pollutants, including and important lagging of bacteriologic control. The second section offers an analysis of the predicted response capacity facing the new environmental risk dynamics in the country, encompassing regulation, normativeness and enforcement of environmental and consumer protection, as well as obstacles found in health services to the implementation of surveillance, detection and treatment of health damages caused by environmental factors. The analysis of the organized social response to these problems discloses a relative flexibility of the normativeness and enforcement functions in comparison with our northern neighbors, a paramount factor for the possible transference of environmental risks, as well as the informational and research deficiency about environmental issues, basic elements for sustaining environmental health in the country, aiming at speeding up the development and transference of technologies for prevention, detection and management of environmental risks in the country, drawing upon the systematization of our experience and that of our neighbors. This speeding process ought to match, in the medium term, the velocity of risk transference produced by the commercial opening. In this way, the commercial integration of North America will become a favorable context for the development of the environmental health infrastructure of the country.