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Abstract: Low carbon cities. What, exactly, are we talking about? Are we talking about lifestyles, activities, or enterprises? Are we talking about individual or group voluntary behavior change or a policy framework that seeks to encourage behavior change by regulatory force? Faced with an enormous literature that mixes related topics like sustainable development/climate change/energy conservation/low carbon, it is not surprising to hear about local governments’ or planners’ “climate change initiatives”. This paper describes/reflects on how officials in Broward County, Florida, are dealing with issues of awareness, governance, measurement, and instruments for challenges arising from the combined threats of energy depletion and climate change. The overriding objective of this paper is to provide some pith for the discussion of planning for low carbon cities. To this end, we describe and reflect on the planning management responses of Broward County, Florida, USA – as an illustrative local government – in dealing with climate change challenges (CCC), energy conservation (EC) and greenhouse gas reduction (GHG). Both description and reflection are important as it is primarily the latter that provides the critical perspective necessary for assessing both potential and effect. The paper is organized into five sections. The first two sections address the “contextual” questions raised above: what is the level of knowledge and/or awareness among the collection of planners and/or local governments; and, what are/is appropriate responses of different levels of government. In the next section, we review overall levels of knowledge and awareness of basic science and policy dimensions, with particular attention paid to (a version of the) US planning profession. This is followed by a discussion of “theoretical” prescriptions for actions at different levels of government. The third and fourth sections focus on Broward County. The third section describes the county and presents a current measurement of its carbon footprint (at least at the level to which it can be measured). The fourth section describes the operational response of Broward County government. The final section returns to the original questions of knowledge and appropriate types of responses and argues that while the Broward response is generally effective in certain aspects, the current policy paradigm contains both strengths and weaknesses, which are generally outlined and discussed. [Copyright &y& Elsevier]

Abstract: Over the past decades, the cost-effectiveness principle or a cost–benefit analysis has typically been employed as an assessment tool for the expansion of drinking water utilities. With changing public awareness of the inherent linkages between greenhouse gas emissions and climate change, the addition of this new consideration in the assessment regime has altered the landscape of the traditional evaluation matrix. This paper presents a comparative evaluation based on a suite of carbon footprint and cost data associated with 20 expansion alternatives for a systematic priority analysis of a drinking water infrastructure system in South Florida. [Copyright &y& Elsevier]