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2.
PLoS One ; 16(4): e0248818, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33852593

RESUMO

The implementation of large-scale containment measures by governments to contain the spread of the COVID-19 virus has resulted in large impacts to the global economy. Here, we derive a new high-frequency indicator of economic activity using empirical vessel tracking data, and use it to estimate the global maritime trade losses during the first eight months of the pandemic. We go on to use this high-frequency dataset to infer the effect of individual non-pharmaceutical interventions on maritime exports, which we use as a proxy of economic activity. Our results show widespread port-level trade losses, with the largest absolute losses found for ports in China, the Middle-East and Western Europe, associated with the collapse of specific supply-chains (e.g. oil, vehicle manufacturing). In total, we estimate that global maritime trade reduced by -7.0% to -9.6% during the first eight months of 2020, which is equal to around 206-286 million tonnes in volume losses and up to 225-412 billion USD in value losses. We find large sectoral and geographical disparities in impacts. Manufacturing sectors are hit hardest, with losses up to 11.8%, whilst some small islands developing states and low-income economies suffered the largest relative trade losses. Moreover, we find a clear negative impact of COVID-19 related school and public transport closures on country-wide exports. Overall, we show how real-time indicators of economic activity can inform policy-makers about the impacts of individual policies on the economy, and can support economic recovery efforts by allocating funds to the hardest hit economies and sectors.


Assuntos
COVID-19/economia , Comércio/economia , Quarentena/economia , COVID-19/epidemiologia , China/epidemiologia , Controle de Doenças Transmissíveis/economia , Controle de Doenças Transmissíveis/métodos , Economia , Europa (Continente)/epidemiologia , Governo , Humanos , Oriente Médio/epidemiologia , Pandemias/economia , SARS-CoV-2/isolamento & purificação , Navios/economia
3.
Nat Commun ; 12(1): 2415, 2021 04 27.
Artigo em Inglês | MEDLINE | ID: mdl-33907197

RESUMO

The COVID-19 pandemic has resulted in unparalleled global impacts on human mobility. In the ocean, ship-based activities are thought to have been impacted due to severe restrictions on human movements and changes in consumption. Here, we quantify and map global change in marine traffic during the first half of 2020. There were decreases in 70.2% of Exclusive Economic Zones but changes varied spatially and temporally in alignment with confinement measures. Global declines peaked in April, with a reduction in traffic occupancy of 1.4% and decreases found across 54.8% of the sampling units. Passenger vessels presented more marked and longer lasting decreases. A regional assessment in the Western Mediterranean Sea gave further insights regarding the pace of recovery and long-term changes. Our approach provides guidance for large-scale monitoring of the progress and potential effects of COVID-19 on vessel traffic that may subsequently influence the blue economy and ocean health.


Assuntos
COVID-19/epidemiologia , Oceanos e Mares , Navios/estatística & dados numéricos , COVID-19/prevenção & controle , Ecossistema , Atividades Humanas , Humanos , SARS-CoV-2 , Navios/classificação , Navios/economia
4.
PLoS One ; 15(5): e0230494, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32437445

RESUMO

The mobile nature of fishing activity entails dynamic spatial relations and dependencies between coastal communities and fishing grounds drawn by the movement of fishing vessels. Analysing these spatial relations is essential to allocate the socio-economic impact of the fishing activity into the relevant coastal communities. In addition, such spatial information gives the possibility, on the one hand, to assess the impacts from fisheries on the marine environment and, on the other, to manage competing uses of the sea space between different activities. In this paper, we use AIS data, which is individual vessels' positioning data, to examine the activity of the EU large-scale fishing fleets, their home ports, high intensity fishing areas (i.e., main fishing grounds), main ports and coastal communities involved.


Assuntos
Conservação dos Recursos Naturais/economia , Pesqueiros/economia , Mapeamento Geográfico , Navios/economia , Instalações de Transporte , Europa (Continente)
5.
Mar Pollut Bull ; 149: 110561, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31542600

RESUMO

This study investigates conditions under which differentiating port fees based on vessels' environmental performance could be an additional driver for cruise-ship owners to invest in green technologies. Our case study on liquefied natural gas (LNG) as fuel for a cruise ship shows that port-based incentives could help reduce emissions to air and drive uptake of green technologies. Assuming an average rebate of EUR 1500 per port visit, the accumulated rebates globally for our case study ship exceed EUR 400,000 per year. Applying a rebate of nearly EUR 4800 per visit as currently offered in Norwegian ports, and assuming 50% of ports globally adopt the scheme, gives a cost benefit of EUR 700,000 per year, reducing the LNG technology payback time up to one year. Our case study also shows that significantly reducing ship emissions in ports will bring social benefits through reduced risks of loss of life, health and wellbeing.


Assuntos
Conservação dos Recursos Naturais/economia , Conservação dos Recursos Naturais/métodos , Honorários e Preços/classificação , Navios/economia , Poluição do Ar/análise , Poluição do Ar/prevenção & controle , Análise Custo-Benefício , Gás Natural/análise , Emissões de Veículos/análise , Emissões de Veículos/prevenção & controle
6.
PLoS One ; 14(2): e0210562, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30763327

RESUMO

Two complementary measurement systems-built upon an autonomous floating craft and a tethered balloon-for lake research and monitoring are presented. The autonomous vehicle was assembled on a catamaran for stability, and is capable of handling a variety of instrumentation for in situ and near-surface measurements. The catamaran hulls, each equipped with a small electric motor, support rigid decks for arranging equipment. An electric generator provides full autonomy for about 8 h. The modular power supply and instrumentation data management systems are housed in two boxes, which enable rapid setup. Due to legal restrictions in Switzerland (where the craft is routinely used), the platform must be observed from an accompanying boat while in operation. Nevertheless, the control system permits fully autonomous operation, with motion controlled by speed settings and waypoints, as well as obstacle detection. On-board instrumentation is connected to a central hub for data storage, with real-time monitoring of measurements from the accompanying boat. Measurements from the floating platform are complemented by mesoscale imaging from an instrument package attached to a He-filled balloon. The aerial package records thermal and RGB imagery, and transmits it in real-time to a ground station. The balloon can be tethered to the autonomous catamaran or to the accompanying boat. Missions can be modified according to imagery and/or catamaran measurements. Illustrative results showing the surface thermal variations of Lake Geneva demonstrate the versatility of the combined floating platform/balloon imagery system setup for limnological investigations.


Assuntos
Aeronaves , Monitoramento Ambiental , Limnologia , Navios , Aeronaves/economia , Aeronaves/instrumentação , Monitoramento Ambiental/economia , Monitoramento Ambiental/instrumentação , Desenho de Equipamento , Lagos/análise , Limnologia/economia , Limnologia/instrumentação , Navios/economia , Navios/instrumentação , Suíça
7.
Mar Pollut Bull ; 135: 357-360, 2018 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-30301047

RESUMO

Decommissioning offshore Floating Production, Storage and Offloading (FPSO) platforms requires extensive technical knowledge, since it generates different post-consumer materials, including mooring lines. These ropes are made from polyester high tenacity yarn, based on polyethylene terephthalate (PET), and their high added value means they should not be discarded as scrap. This paper aims to present a review and technical opportunities, from an economic standpoint, of recycling the mooring lines recovered from decommissioned FPSOs. Studies conducted over the last two years have researched and developed different potential applications for the fibers. These studies include collaborative project initiatives involving technical and management professionals, universities and private enterprises, with a view to achieving a more sustainable destination for these fibers.


Assuntos
Poliésteres/química , Reciclagem/economia , Navios/instrumentação , Navios/economia
8.
Mar Pollut Bull ; 128: 539-547, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29571406

RESUMO

Ports are an important player in the world, due to their role in global production and distributions systems. They are major intermodal transport hubs, linking the sea to the land. For all ports, a key requirement for commercial and economic viability is to retain ships using them and to remain accessible to those ships. Ports need to find approaches to help them remain open. They must ensure their continued economic viability. At the same time, they face increasing pressure to become more environmentally and socially conscious. This paper examines the approach taken by the Port of Gävle, Sweden, which used contaminated dredged materials to create new land using principles of Circular Economy. The paper demonstrates that using Circular Economy principles can be a viable way of securing a port's future and contributing to its sustainability, and that of the city/region where it operates.


Assuntos
Conservação dos Recursos Naturais/economia , Conservação dos Recursos Naturais/tendências , Instalações de Transporte/economia , Instalações de Transporte/tendências , Avaliação de Programas e Projetos de Saúde/economia , Navios/economia , Suécia
9.
Environ Pollut ; 236: 49-59, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29414374

RESUMO

China established Domestic Emission Control Area (DECA) for sulphur since 2015 to constrain the increasing shipping emissions. However, future DECA policy-makings are not supported due to a lack of quantitive evaluations. To investigate the effects of current and possible Chinese DECAs policies, a model is presented for the forecast of shipping emissions and evaluation of potential costs and benefits of an DECA policy package set in 2020. It includes a port-level and regional-level projection accounting for shipping trade volume growth, share of ship types, and fuel consumption. The results show that without control measures, both SO2 and particulate matter (PM) emissions are expected to increase by 15.3-61.2% in Jing-Jin-Ji, the Yangtze River Delta, and the Pearl River Delta from 2013 to 2020. However, most emissions can be reduced annually by the establishment of a DECA that depends on the size of the control area and the fuel sulphur content limit. Costs range from 0.667 to 1.561 billion dollars (control regional shipping emissions) based on current fuel price. A social cost method shows the regional control scenarios benefit-cost ratios vary from 4.3 to 5.1 with large uncertainty. Chemical transportation model combined with health model method is used to get the monetary health benefits and then compared with the results from social cost method. This study suggests that Chinese DECAs will reduce the projected emissions at a favorable benefit-cost ratio, and furthermore proposes policy combinations that provide high cost-effective benefits as a reference for future policy-making.


Assuntos
Poluição do Ar/economia , Navios/economia , Poluentes Atmosféricos/análise , Poluentes Atmosféricos/economia , Poluição do Ar/análise , China , Análise Custo-Benefício , Monitoramento Ambiental/economia , Material Particulado/análise , Material Particulado/economia , Navios/estatística & dados numéricos , Enxofre/análise
10.
Int Marit Health ; 68(2): 77-82, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28660609

RESUMO

BACKGROUND: This review seeks to understand whether and how seafarers can exercise their human right to health care and the factors that facilitate or impede that exercise. The general focus is on a critical policy analysis of labour policies from the mid-twentieth century through today, with a specific focus on how Filipino seafarers access their health care rights. MATERIALS AND METHODS: The methodology includes a critical policy analysis of seafaring, focusing on mid-twentieth century political shifts in the recognition and regulation of health care rights. The analysis of international and United States policy provides the backbone for understanding the health care experiences of seafarers by laying the ideological, theoretical, and political foundations of labour rights and precarious employment. RESULTS: Policy analysis shows that there are numerous laws, regulations, and human rights norms that have been established to protect seafarers, but uncertain and limited recourse to lay claim to such laws, regulations, and norms while at sea. Lack of recourse to policies and regulations, taken together with the changed conditions of labour and worker protections through technology and neoliberal policies, create the conditions that may increase the health inequity among seafarers'. CONCLUSIONS: Health policy discussions in the United States and internationally must not solely focus on the health of seafarers as an interruption to travel and trade, but policy makers should consider that their decisions may contribute to how seafarers can exercise their rights to health care. In this context, health is more than disease and access to care - economic and governance structures come to not only matter, but play an integral role in the facilitation or impediment of health care and to the health arrangements/conditions of workers.


Assuntos
Medicina Naval/legislação & jurisprudência , Saúde Ocupacional/legislação & jurisprudência , Navios/economia , Disparidades em Assistência à Saúde , Direitos Humanos , Humanos , Saúde Ocupacional/normas , Filipinas/etnologia , Estados Unidos
11.
J Environ Manage ; 184(Pt 2): 431-440, 2016 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-27742151

RESUMO

The maximum allowable fuel sulphur content for shipping in the Baltic Sea dropped from 1%S to 0.1%S in 1 January 2015. We provide a cost-benefit analysis of the sulphur reduction policy in the Baltic Sea Sulphur Emission Control Area (SECA). We calculated the abatement costs based on shipowners' optimal decision-making in choosing between low-sulphur fuel and a sulphur scrubber, and the benefits were modelled through a high-resolution impact pathway analysis, which took into account the formation and dispersion of the emissions, and considered the positive health impacts resulting from lowered ambient PM2.5 concentrations. Our basic result indicates that for the Baltic Sea only, the latest sulphur regulation is not cost-effective. The expected annual cost is roughly €465 M and benefit 2200 saved Disability Adjusted Life-Years (DALYs) or monetized €105 M. Based on our sensitivity analysis, the benefits yet have a potential to exceed the costs. The analysis neither takes into account the acidifying impact of sulphur nor the impact North Sea shipping has on the cost-benefit ratio. Lastly, a similar approach is found highly recommendable to study the implications of the upcoming Tier III NOx standard for shipping.


Assuntos
Navios/economia , Navios/normas , Enxofre , Poluição do Ar/prevenção & controle , Países Bálticos , Análise Custo-Benefício , Meio Ambiente , Humanos , Modelos Teóricos , Gás Natural , Petróleo/normas , Saúde Pública
13.
Environ Sci Technol ; 50(3): 1102-10, 2016 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-26713768

RESUMO

When in port, ships burn marine diesel in on-board generators to produce electricity and are significant contributors to poor local and regional air quality. Supplying ships with grid electricity can reduce these emissions. We use two integrated assessment models to quantify the benefits of reducing the emissions of NOX, SO2, PM2.5, and CO2 that would occur if shore power were used. Using historical vessel call data, we identify combinations of vessels and berths at U.S. ports that could be switched to shore power to yield the largest gains for society. Our results indicate that, depending on the social costs of pollution assumed, an air quality benefit of $70-150 million per year could be achieved by retrofitting a quarter to two-thirds of all vessels that call at U.S. ports. Such a benefit could be produced at no net cost to society (health and environmental benefits would be balanced by the cost of ship and port retrofit) but would require many ships to be equipped to receive shore power, even if doing so would result in a private loss for the operator. Policy makers could produce a net societal gain by implementing incentives and mandates to encourage a shift toward shore power.


Assuntos
Poluição do Ar , Fontes Geradoras de Energia , Modelos Teóricos , Navios/economia , Poluentes Atmosféricos/análise , Poluição do Ar/economia , Poluição do Ar/prevenção & controle , Dióxido de Carbono/análise , Análise Custo-Benefício , Fontes Geradoras de Energia/economia , Dióxido de Enxofre/análise , Estados Unidos
14.
Mar Pollut Bull ; 101(2): 612-7, 2015 Dec 30.
Artigo em Inglês | MEDLINE | ID: mdl-26517940

RESUMO

The ballast waters from ships pose a major threat to oceans, notably because of the spread of microorganisms. The present study evaluates the techno-economic feasibility of implementing the membrane process to remove microalgae from seawater to be ballasted in a single step during planktonic bloom. The optimal conditions for the microfiltration of complex and reproducible synthetic seawater are a permeate flux and specific filtered volume of 100 L.h(-1).m(-2) and 75 L.m(-2).cycle(-1), respectively. Recovery of the membrane process represents about 76.6% and 62.7% of the annual cost for a cruise ship (5400 passengers) and liquefied natural gas (LNG) carrier (75,000 m3 of liquid natural gas), followed by the membrane replacement cost (13.4% and 21.9%, respectively). The treatment costs are competitive with conventional treatments, even when the membrane process is more feasible for cruise ships due to its smaller capital cost and footprint.


Assuntos
Microalgas , Água do Mar , Purificação da Água/instrumentação , Purificação da Água/métodos , Membranas Artificiais , Porosidade , Navios/economia , Purificação da Água/economia
15.
Risk Anal ; 35(8): 1562-90, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25692712

RESUMO

Public companies in the United States are required to report standardized values of their proved reserves and asset retirement obligations on an annual basis. When compared, these two measures provide an aggregate indicator of corporate decommissioning risk but, because of their consolidated nature, cannot readily be decomposed at a more granular level. The purpose of this article is to introduce a decommissioning risk metric defined in terms of the ratio of the expected value of an asset's reserves to its expected cost of decommissioning. Asset decommissioning risk (ADR) is more difficult to compute than a consolidated corporate risk measure, but can be used to quantify the decommissioning risk of structures and to perform regional comparisons, and also provides market signals of future decommissioning activity. We formalize two risk metrics for decommissioning and apply the ADR metric to the deepwater Gulf of Mexico (GOM) floater inventory. Deepwater oil and gas structures are expensive to construct, and at the end of their useful life, will be expensive to decommission. The value of proved reserves for the 42 floating structures in the GOM circa January 2013 is estimated to range between $37 and $80 billion for future oil prices between 60 and 120 $/bbl, which is about 10 to 20 times greater than the estimated $4.3 billion to decommission the inventory. Eni's Allegheny and MC Offshore's Jolliet tension leg platforms have ADR metrics less than one and are approaching the end of their useful life. Application of the proposed metrics in the regulatory review of supplemental bonding requirements in the U.S. Outer Continental Shelf is suggested to complement the current suite of financial metrics employed.


Assuntos
Navios , Humanos , México , Navios/economia , Navios/legislação & jurisprudência , Estados Unidos
16.
Environ Sci Technol ; 48(21): 12986-93, 2014 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-25286282

RESUMO

The regionalized Global Energy Transition model has been modified to include a more detailed shipping sector in order to assess what marine fuels and propulsion technologies might be cost-effective by 2050 when achieving an atmospheric CO2 concentration of 400 or 500 ppm by the year 2100. The robustness of the results was examined in a Monte Carlo analysis, varying uncertain parameters and technology options, including the amount of primary energy resources, the availability of carbon capture and storage (CCS) technologies, and costs of different technologies and fuels. The four main findings are (i) it is cost-effective to start the phase out of fuel oil from the shipping sector in the next decade; (ii) natural gas-based fuels (liquefied natural gas and methanol) are the most probable substitutes during the study period; (iii) availability of CCS, the CO2 target, the liquefied natural gas tank cost and potential oil resources affect marine fuel choices significantly; and (iv) biofuels rarely play a major role in the shipping sector, due to limited supply and competition for bioenergy from other energy sectors.


Assuntos
Carbono , Fontes Geradoras de Energia/economia , Modelos Teóricos , Navios , Biocombustíveis/economia , Carbono/análise , Dióxido de Carbono/análise , Análise Custo-Benefício , Método de Monte Carlo , Gás Natural/economia , Navios/economia , Navios/métodos
20.
Int Marit Health ; 64(3): 129-35, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24072539

RESUMO

BACKGROUND AND AIM: Following the coming into force of the International Labour Organisation Maritime Labour Convention (ILO/MLC) and International Maritime Organisation Standards for Training, Certification and Watchkeeping, Manila 2010 (IMO/STCW) amendments, the objective of this article is to provide the shipping community with an initial assessment of the economic reasons and business case, in support of both publicly financed and private telemedicine being implemented on board commercial vessels. MATERIALS AND METHODS: It provides the global scale of the requirement, the number of Telemedicine Assistance Services (TMAS) calls handled by participating TMAS, the average direct and indirect costs incurred by both TMAS and ship operators, responding to medical emergencies, and also provides a calculation of the market size of about 760 million Euro/year. It estimates a return on investment per ship, of implementing telemedicine on board to meet the MLC and STCW requirements at less than 1 year. RESULTS AND CONCLUSIONS: 1. There are both financial and soft benefits, such as crew retention and being perceived as a quality employer offering a telemedicine service on board. 2. It is quite possible to obtain a 20% savings to the industry of perhaps 152 million Euro/year from the deployment of telemedicine on board. 3. The deployment of a telemedical service on ships is an opportunity to encourage further cooperation between TMAS and also with the private TMAS sector. 4. There is clearly a great need, on a global basis, for more cooperation, particularly in standardisation of pre-boarding medical files available, the equipmentrequired on board at a minimum, and level of service quality provided. 5. A collection of a common TMAS annual set of normalised statistics from the stakeholders in the maritime industry is needed. Should someone not be tasked with collecting this? 6. Open registries and countries where the private sector only providestele medicine, should be encouraged to work with the global public TMAS system and contribute to its costs?


Assuntos
Serviços de Saúde do Trabalhador/economia , Serviços de Saúde do Trabalhador/organização & administração , Navios/economia , Telemedicina/economia , Telemedicina/organização & administração , Emergências , Humanos , Medicina Naval/economia , Medicina Naval/métodos , Estudos de Casos Organizacionais , Lealdade ao Trabalho , Parcerias Público-Privadas
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