5,259 research outputs found

    Antarctic climate, Southern Ocean circulation patterns, and deep water formation during the Eocene

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    We assess early-to-middle Eocene seawater neodymium (Nd) isotope records from seven Southern Ocean deep-sea drill sites to evaluate the role of Southern Ocean circulation in long-term Cenozoic climate change. Our study sites are strategically located on either side of the Tasman Gateway and are positioned at a range of shallow (Nd(t) = −9.3 ± 1.5). IODP Site U1356 off the coast of Adélie Land, a locus of modern-day Antarctic Bottom Water production, is identified as a site of persistent deep water formation from the early Eocene to the Oligocene. East of the Tasman Gateway an additional local source of intermediate/deep water formation is inferred at ODP Site 277 in the SW Pacific Ocean (εNd(t) = −8.7 ± 1.5). Antarctic-proximal shelf sites (ODP Site 1171 and Site U1356) reveal a pronounced erosional event between 49 and 48 Ma, manifested by ~2 εNd unit negative excursions in seawater chemistry toward the composition of bulk sediments at these sites. This erosional event coincides with the termination of peak global warmth following the Early Eocene Climatic Optimum and is associated with documented cooling across the study region and increased export of Antarctic deep waters, highlighting the complexity and importance of Southern Ocean circulation in the greenhouse climate of the Eocene

    CBD COP-10:Towards Post-2010 Implementation

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    Plastics Toolbox: Business, Human Rights, and the Environment (August/November 2021)

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    The Plastics Toolbox: Business, Human Rights, and the Environment, compiles good practices and cross-cutting guidance on a human rights-based approach to plastic pollution prevention and management with a focus on capacity building of governments and businesses in the East Asian Seas region. This compilation of resources, guidance, tools and trainings was prepared by a team of researchers at Dalhousie University\u27s Marine and Environmental Law Institute under the direction of project lead Dr Sara L Seck, with funding from the United Nations Environment Programme. The materials in the toolbox were gathered from May to August 2021 and updated in November 2021. The toolbox will be updated in 2022

    Collaboration technology and space science

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    A summary of available collaboration technologies and their applications to space science is presented as well as investigations into remote coaching paradigms and the role of a specific collaboration tool for distributed task coordination in supporting such teleoperations. The applicability and effectiveness of different communication media and tools in supporting remote coaching are investigated. One investigation concerns a distributed check-list, a computer-based tool that allows a group of people, e.g., onboard crew, ground based investigator, and mission control, to synchronize their actions while providing full flexibility for the flight crew to set the pace and remain on their operational schedule. This autonomy is shown to contribute to morale and productivity

    EcoGIS – GIS tools for ecosystem approaches to fisheries management

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    Executive Summary: The EcoGIS project was launched in September 2004 to investigate how Geographic Information Systems (GIS), marine data, and custom analysis tools can better enable fisheries scientists and managers to adopt Ecosystem Approaches to Fisheries Management (EAFM). EcoGIS is a collaborative effort between NOAA’s National Ocean Service (NOS) and National Marine Fisheries Service (NMFS), and four regional Fishery Management Councils. The project has focused on four priority areas: Fishing Catch and Effort Analysis, Area Characterization, Bycatch Analysis, and Habitat Interactions. Of these four functional areas, the project team first focused on developing a working prototype for catch and effort analysis: the Fishery Mapper Tool. This ArcGIS extension creates time-and-area summarized maps of fishing catch and effort from logbook, observer, or fishery-independent survey data sets. Source data may come from Oracle, Microsoft Access, or other file formats. Feedback from beta-testers of the Fishery Mapper was used to debug the prototype, enhance performance, and add features. This report describes the four priority functional areas, the development of the Fishery Mapper tool, and several themes that emerged through the parallel evolution of the EcoGIS project, the concept and implementation of the broader field of Ecosystem Approaches to Management (EAM), data management practices, and other EAM toolsets. In addition, a set of six succinct recommendations are proposed on page 29. One major conclusion from this work is that there is no single “super-tool” to enable Ecosystem Approaches to Management; as such, tools should be developed for specific purposes with attention given to interoperability and automation. Future work should be coordinated with other GIS development projects in order to provide “value added” and minimize duplication of efforts. In addition to custom tools, the development of cross-cutting Regional Ecosystem Spatial Databases will enable access to quality data to support the analyses required by EAM. GIS tools will be useful in developing Integrated Ecosystem Assessments (IEAs) and providing pre- and post-processing capabilities for spatially-explicit ecosystem models. Continued funding will enable the EcoGIS project to develop GIS tools that are immediately applicable to today’s needs. These tools will enable simplified and efficient data query, the ability to visualize data over time, and ways to synthesize multidimensional data from diverse sources. These capabilities will provide new information for analyzing issues from an ecosystem perspective, which will ultimately result in better understanding of fisheries and better support for decision-making. (PDF file contains 45 pages.

    The data chase : what's out there on trade costs and nontariff barriers ?

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    Trade costs and nontariff barriers are at the forefront of discussions on competitiveness and expanding trade opportunities for developing countries. This paper provides a summary overview of data and indicators relevant to these issues and has been informed by work underway at the World Bank on trade facilitation over the past several years to catalogue data sets and indicators. Although there has been progress in expanding data sets and developing policy-relevant indicators on trade costs and barriers, much more is needed. In order to assess progress toward achieving the Millennium Development Goals, evaluating the impact of development projects, and whether meeting Aid for Trade goals will be met, for example, a dedicated and expansive new effort to collect and assess data is needed. This paper attempts to highlight gaps in data on trade costs and provides insight into the type of new data that might be developed in the future.Transport Economics Policy&Planning,Economic Theory&Research,Trade Law,Free Trade,Trade Policy

    Value Gaps in the Planetary Matrix of the World Community as a Limitrophe of War and Peace

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    The article describes the problem of spontaneous transformation of the planetary matrix of the social world, moving from the cell to the network structure, resulting not only in the changes of the world system of the planetary community, the shapes of national states are melting out gradually, the need for cosmopolitan world perception and thinking of the political elite arises, the managing processes come into the picture, hybrid planetary policy is formed, and finally, qualitatively new conflict forms and even hybrid wars appear. With the change in the planetary matrix structure, there are several fundamental changes in the life-plan of a planetary human being, since the fundamentally different segments of archetypes are activated in the world community's subconsciousness, the values-semantic substrates are mixed in the consciousness, and completely different logical schemes and algorithms of influence on a person are activated in the noosphere. At the same time, this means that in the sphere of national powers the emphasis of state policy, state regulation and public administration tends to shift from the territorial horizon into the plane of regulation of world planetary processes. This tendency also transfers the focus of their organizational efforts from the national and state levels to the political space of interstate and supra-state entities. The most intense points of relations between the actors of the modern integral process are the so-called limitrophes and frontiers
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