Identifying and overcoming barriers in urban adaptation efforts to climate change: Case study findings from the San Francisco Bay Area, California, USA

Abstract The persistent gap, termed the "adaptation deficit," between the assumed ability of communities to adapt to climate change and the on-the-ground evidence of their progress to adapt is well-documented. To at least partially explain this adaptation deficit, a growing number of researchers have focused on the existence and nature of barriers to adaptation and about society's ability to overcome them. This paper presents a study that systematically identifies barriers to adaptation processes in the San Francisco Bay Area, California, USA. A three-step, theory-driven framework, previously developed by the authors from a meta-analysis of the existing literature, is used here to identify, organize, and diagnose barriers in four cities and one largely urbanized region. Taken together, the most frequent type of barrier encountered in these cases is related to institutional and governance issues followed by the attitudes, values and motivations of the actors involved. Resource and funding constraints also matter, but scientific and technical issues are far less prominent than often presumed.' The theoretical framework was found to usefully support the identification and organization of barriers and to provide a "road map" for designing strategies to circumvent, remove, or lower the barriers and thus come closer to closing the adaptation deficit

Building resilience of coastal fishing communities to harmful algal blooms

Starting in May 2015 a massive harmful algal bloom (HAB) of the toxigenic diatom Pseudo-nitzschia occurred along the North American west coast resulting in unsafe levels of domoic acid in seafood. Subsequent fisheries harvest closures were both the longest and the most geographically widespread on record. Fishery-dependent coastal communities were severely impacted, with a fisheries resource disaster declaration occurring for the 2015-16 season of the California Dungeness crab fishery. This research aims to assess the social, cultural and economic impacts of the 2015 HAB event across 17 fishing communities on the US west coast using primary survey data. The survey instrument collected sociodemographic and economic factors hypothesized to confer resilience to HAB events as well as data that quantifies individual impacts. Community responses to the massive 2015 US west coast HAB event will be examined within a community disaster resilience framework. The impacts may be influenced by the community’s social vulnerability, dependence on commercial and recreational fisheries, as well as any immediate adaptive responses. The survey data will be used to empirically test existing indices of community social vulnerability and commercial fishing dependence that have been developed by NOAA using secondary data. The results from this analysis will identify protective factors that contribute to a community’s ability to cope with HABs, and promote cost-effective and practical means of building resilience to future HAB events in at-risk communities

Spatial and temporal melt variability at Helheim Glacier, East Greenland, and its effect on ice dynamics

This is the publisher's version, also available electronically from "http://onlinelibrary.wiley.com".[1] Understanding the behavior of large outlet glaciers draining the Greenland Ice Sheet is critical for assessing the impact of climate change on sea level rise. The flow of marine-terminating outlet glaciers is partly governed by calving-related processes taking place at the terminus but is also influenced by the drainage of surface runoff to the bed through moulins, cracks, and other pathways. To investigate the extent of the latter effect, we develop a distributed surface-energy-balance model for Helheim Glacier, East Greenland, to calculate surface melt and thereby estimate runoff. The model is driven by data from an automatic weather station operated on the glacier during the summers of 2007 and 2008, and calibrated with independent measurements of ablation. Modeled melt varies over the deployment period by as much as 68% relative to the mean, with melt rates approximately 77% higher on the lower reaches of the glacier trunk than on the upper glacier. We compare melt variations during the summer season to estimates of surface velocity derived from global positioning system surveys. Near the front of the glacier, there is a significant correlation (on >95% levels) between variations in runoff (estimated from surface melt) and variations in velocity, with a 1 day delay in velocity relative to melt. Although the velocity changes are small compared to accelerations previously observed following some calving events, our findings suggest that the flow speed of Helheim Glacier is sensitive to changes in runoff. The response is most significant in the heavily crevassed, fast-moving region near the calving front. The delay in the peak of the cross-correlation function implies a transit time of 12–36 h for surface runoff to reach the bed

Vulnerability and adaptation of US shellfisheries to ocean acidification

Ocean acidification is a global, long-term problem whose ultimate solution requires carbon dioxide reduction at a scope and scale that will take decades to accomplish successfully. Until that is achieved, feasible and locally relevant adaptation and mitigation measures are needed. To help to prioritize societal responses to ocean acidification, we present a spatially explicit, multidisciplinary vulnerability analysis of coastal human communities in the United States. We focus our analysis on shelled mollusc harvests, which are likely to be harmed by ocean acidification. Our results highlight US regions most vulnerable to ocean acidification (and why), important knowledge and information gaps, and opportunities to adapt through local actions. The research illustrates the benefits of integrating natural and social sciences to identify actions and other opportunities while policy, stakeholders and scientists are still in relatively early stages of developing research plans and responses to ocean acidification.This is the publisher’s final pdf. The published article is copyrighted by the Nature Publishing Group and can be found at: http://www.nature.com/nclimate/index.html

Four steps for the Earth: mainstreaming the post-2020 global biodiversity framework

The upcoming Convention on Biological Diversity (CBD) meeting, and adoption of the new Global Biodiversity Framework, represent an opportunity to transform humanity's relationship with nature. Restoring nature while meeting human needs requires a bold vision, including mainstreaming biodiversity conservation in society. We present a framework that could support this: the Mitigation and Conservation Hierarchy. This places the Mitigation Hierarchy for mitigating and compensating the biodiversity impacts of developments (1, avoid; 2, minimize; 3, restore; and 4, offset, toward a target such as "no net loss" of biodiversity) within a broader framing encompassing all conservation actions. We illustrate its application by national governments, sub-national levels (specifically the city of London, a fishery, and Indigenous groups), companies, and individuals. The Mitigation and Conservation Hierarchy supports the choice of actions to conserve and restore nature, and evaluation of the effectiveness of those actions, across sectors and scales. It can guide actions toward a sustainable future for people and nature, supporting the CBD's vision

Navigating Fragmented Ocean Law in the California Current: Tools to Identify and Measure Gaps and Overlaps for Ecosystem-Based Management

Fragmented ocean management contributes significantly to the declining health of the world’s oceans. The sector-based piecemeal approach to management has produced a governance system filled with gaps and overlaps. These inefficiencies impede effective mitigation and confrontation of major environmental stressors. Historically, industries such as mining, fishing, and shipping, have driven management decisions for ocean-related uses. Government agencies, scientists, and other natural resource stakeholders are moving toward a management approach based on the relevant ecosystem, in order to resolve problematic fragmentation in ocean management. Transitioning into an ecosystem-based management approach requires comprehensive and systematic evaluation of the problems created by fragmented decision-making and of the landscape of the current governance system. In an effort to contribute to the shift toward ecosystem-based management efforts, this dissertation explores and develops text mining techniques that identify and evaluate gaps and overlaps. Two institutional theories frame the development of gaps and overlaps analyses: the problem of fit and institutional interplay, respectively. The gaps analysis uses conceptual ecosystem models and term counts from laws to identify situations in which management fails to acknowledge ecosystem relationships. From the gaps analysis, two measures indicate the degree to which governance (referring to the whole cross sectoral system of law) reflects the relationships and functionality of the ecosystem it aims to manage. The overlaps analysis uses term counts of laws combined with agency authority data to provide information about potential hubs of regulatory activity for a given topic (Overlap Index), and the degree of agency involvement in a particular topic. To develop such techniques, the project first compiled a comprehensive set of state and federal statutes and regulations to represent ocean and coastal management in the California Current Large Marine Ecosystem. This dissertation also highlights the utility of analyses in the context of a real world environmental problem by presenting a case study applying the analyses to ocean acidification and its projected impacts on the California Channel Islands waters. Overall, this dissertation demonstrates the immense application potential of computer science to provide baseline data about fragmented ocean management. This dissertation shows that text mining can provide a quantitatively and systematically generated starting point for further investigation and identifying research priorities

Navigating Fragmented Ocean Law in the California Current: Tools to Identify and Measure Gaps and Overlaps for Ecosystem-Based Management

Fragmented ocean management contributes significantly to the declining health of the world’s oceans. The sector-based piecemeal approach to management has produced a governance system filled with gaps and overlaps. These inefficiencies impede effective mitigation and confrontation of major environmental stressors. Historically, industries such as mining, fishing, and shipping, have driven management decisions for ocean-related uses. Government agencies, scientists, and other natural resource stakeholders are moving toward a management approach based on the relevant ecosystem, in order to resolve problematic fragmentation in ocean management. Transitioning into an ecosystem-based management approach requires comprehensive and systematic evaluation of the problems created by fragmented decision-making and of the landscape of the current governance system. In an effort to contribute to the shift toward ecosystem-based management efforts, this dissertation explores and develops text mining techniques that identify and evaluate gaps and overlaps. Two institutional theories frame the development of gaps and overlaps analyses: the problem of fit and institutional interplay, respectively. The gaps analysis uses conceptual ecosystem models and term counts from laws to identify situations in which management fails to acknowledge ecosystem relationships. From the gaps analysis, two measures indicate the degree to which governance (referring to the whole cross sectoral system of law) reflects the relationships and functionality of the ecosystem it aims to manage. The overlaps analysis uses term counts of laws combined with agency authority data to provide information about potential hubs of regulatory activity for a given topic (Overlap Index), and the degree of agency involvement in a particular topic. To develop such techniques, the project first compiled a comprehensive set of state and federal statutes and regulations to represent ocean and coastal management in the California Current Large Marine Ecosystem. This dissertation also highlights the utility of analyses in the context of a real world environmental problem by presenting a case study applying the analyses to ocean acidification and its projected impacts on the California Channel Islands waters. Overall, this dissertation demonstrates the immense application potential of computer science to provide baseline data about fragmented ocean management. This dissertation shows that text mining can provide a quantitatively and systematically generated starting point for further investigation and identifying research priorities

California Current Large Marine Ecosystem: Publicly available dataset of state and federal laws and regulations

Transitioning ocean governance into an ecosystem-based approach requires improved knowledge of ecosystems and existing management systems. While there has been increased effort to compile and synthesize ecological data, relatively little scholarship has been focused on improving and understanding ocean management systems. This paper presents a unique dataset that makes objective analyses of ocean management possible across multiple jurisdictions and sectors in the California Current. Following an explanation of the criteria used to compile relevant statutes and regulations, the paper suggests applications for the dataset including education and policy uses and ecosystem-based management tool development to identify and measure problems of fragmented management.Ecosystem-based management Marine governance Ocean law Large marine ecosystem