Indigenous ecotourism in the Mayan rainforest of Palenque : empowerment issues in sustainable development

Indigenous ecotourism in the Mayan rainforest has received little research attention. This study examines issues related to the level of empowerment in a Mayan village located near the Palenque World Heritage Site in southern Mexico. An adapted empowerment framework was used to assess community empowerment and its relationship with stakeholders’ participation by collecting the views of internal and external stakeholders in indigenous ecotourism. Using a checklist of 60 empowerment indicators, the study developed a wheel of empowerment tool that graphically illustrates and compares levels of empowerment/disempowerment in local communities. Results indicate that although there is a will from many villagers to participate in tourism, lack of knowledge, limited economic resources and the poor negotiation skills of local leaders have disempowered the community from undertaking ecotourism ventures. Non Governmental Organisations (NGOs) have not supported the community until recently, the private sector has played little part, and while the Mexican government is shaping the course of indigenous ecotourism with support programmes, state agencies have resisted local ecotourism development. Overall, the community fell below the midpoint on the Wheel of Empowerment Scale. These findings show a need for more effective empowerment strategies to maximise community involvement in managing cultural and natural resources for tourism development

Indigenous ecotourism in the Mayan rainforest of Palenque : empowerment issues in sustainable development

Indigenous ecotourism in the Mayan rainforest has received little research attention. This study examines issues related to the level of empowerment in a Mayan village located near the Palenque World Heritage Site in southern Mexico. An adapted empowerment framework was used to assess community empowerment and its relationship with stakeholders’ participation by collecting the views of internal and external stakeholders in indigenous ecotourism. Using a checklist of 60 empowerment indicators, the study developed a wheel of empowerment tool that graphically illustrates and compares levels of empowerment/disempowerment in local communities. Results indicate that although there is a will from many villagers to participate in tourism, lack of knowledge, limited economic resources and the poor negotiation skills of local leaders have disempowered the community from undertaking ecotourism ventures. Non Governmental Organisations (NGOs) have not supported the community until recently, the private sector has played little part, and while the Mexican government is shaping the course of indigenous ecotourism with support programmes, state agencies have resisted local ecotourism development. Overall, the community fell below the midpoint on the Wheel of Empowerment Scale. These findings show a need for more effective empowerment strategies to maximise community involvement in managing cultural and natural resources for tourism development

The Evolution of Collective Land Tenure Regimes in Pastoralist Societies: Lessons from Andean Countries

Much has been said about the importance of pastoralist livelihoods for the effective and sustainable use of drylands around the world. Yet, pastoralist societies are experiencing more pressures to their way of life than ever before. These pressures and changing trends are jeopardising pastoralist livelihoods as well as the sustainability of dryland resources. In the face of this challenging reality, this paper aims to analyse how land tenure regimes of pastoralist societies living in the Andean altiplano have transformed over the last 50 years. It also discusses the implications of these transformations for the sustainability of resource management in these areas, based on the premise that a better understanding of customary land tenure regimes can help to inform public policy and decision making

On the potential of on-line free-surface constructed wetlands for attenuating pesticide losses from agricultural land to surface waters

Pesticides make important contributions to agriculture but losses from land to water can present problems for environmental management, particularly in catchments where surface waters are abstracted for drinking water. “On-line” constructed wetlands have been proposed as a potential means of reducing pesticide fluxes in drainage ditches and headwater streams. Here, we evaluate the potential of two free-surface constructed wetland systems to reduce pesticide concentrations in surface waters using a combination of field monitoring and dynamic fugacity modelling. We specifically focus on metaldehyde, a commonly-used molluscicide which is moderately mobile and has been regularly detected at high concentrations in drinking water supply catchments in the UK over the past few years. We also present data for the herbicide metazachlor. Metaldehyde losses from the upstream catchment were significant with peak concentrations occurring in the first storm events in early autumn, soon after application. Concentrations and loads appeared to be minimally affected by transit through the monitored wetlands over a range of flow conditions. This was probably due to short solute residence times (quantified via several tracing experiments employing rhodamine WT – a fluorescent dye) exacerbated by solute exclusion phenomena resulting from patchy vegetation. Model analyses of different scenarios suggested that, even for pesticides with a relatively short aquatic half-life, wetland systems would need to exhibit much longer residence times (RTs) than those studied here in order to deliver any appreciable attenuation. If the ratio of wetland surface area to the area of the contributing catchment is assumed to be a surrogate for RT (i.e. not accounting for solute exclusion) then model predictions suggest that this needs to be greater than 1% to yield load reductions of 3 and 7% for metaldehyde and metazachlor, respectively

A robust ADMM-enabled optimization framework for decentralized coordination of microgrids

The integration of renewable energy resources and electric vehicle (EV) fleets with community microgrids (CMG) has increased fluctuations in net load. To address this and ensure safe operation, tapping into demand-side flexibility capacities in local electricity markets (LEM) is essential. Hence, this article presents a multilevel methodology for settling energy and flexibility markets among CMGs, utilizing the potential of Internet-of-Things-enabled appliances (IoT-EA), thermostatically-controlled loads (TCLs), and EVs in smart residential buildings (SRB) to enhance system performance. At level 1, SRBs are modeled using the virtual energy storage system (VESS) concept. Level 2 involves CMG scheduling, and at level 3, the distribution system operator settles the energy and flexibility markets using an adaptive alternating direction method of multipliers (ADMM) algorithm. Strong duality theory (SDT) and Karush-Kuhn-Tucker (KKT) conditions form a mathematical program with equilibrium constraints (MPEC) where market prices are variable for all participants. By unlocking the potential of SRBs, the proposed framework reduces flexibility market costs by 49.67%, network losses by 24.1%, and improves the voltage profile. The results confirm that the proposed market clearing mechanism ensures market efficiency and protects CMGs' privacy.</p

The Copernicus Marine Environment Monitoring Service Ocean State Report

The Copernicus Marine Environment Monitoring Service (CMEMS) Ocean State Report (OSR) provides an annual report of the state of the global ocean and European regional seas for policy and decision-makers with the additional aim of increasing general public awareness about the status of, and changes in, the marine environment. The CMEMS OSR draws on expert analysis and provides a 3-D view (through reanalysis systems), a view from above (through remote-sensing data) and a direct view of the interior (through in situ measurements) of the global ocean and the European regional seas. The report is based on the unique CMEMS monitoring capabilities of the blue (hydrography, currents), white (sea ice) and green (e.g. Chlorophyll) marine environment. This first issue of the CMEMS OSR provides guidance on Essential Variables, large-scale changes and specific events related to the physical ocean state over the period 1993–2015. Principal findings of this first CMEMS OSR show a significant increase in global and regional sea levels, thermosteric expansion, ocean heat content, sea surface temperature and Antarctic sea ice extent and conversely a decrease in Arctic sea ice extent during the 1993–2015 period. During the year 2015 exceptionally strong large-scale changes were monitored such as, for example, a strong El Niño Southern Oscillation, a high frequency of extreme storms and sea level events in specific regions in addition to areas of high sea level and harmful algae blooms. At the same time, some areas in the Arctic Ocean experienced exceptionally low sea ice extent and temperatures below average were observed in the North Atlantic Ocean

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Long term health outcomes in people with diabetes 12 months after hospitalisation with COVID-19 in the UK: a prospective cohort study

Background: People with diabetes are at increased risk of hospitalisation, morbidity, and mortality following SARS-CoV-2 infection. Long-term outcomes for people with diabetes previously hospitalised with COVID-19 are, however, unknown. This study aimed to determine the longer-term physical and mental health effects of COVID-19 in people with and without diabetes. Methods: The PHOSP-COVID study is a multicentre, long-term follow-up study of adults discharged from hospital between 1 February 2020 and 31 March 2021 in the UK following COVID-19, involving detailed assessment at 5 and 12 months after discharge. The association between diabetes status and outcomes were explored using multivariable linear and logistic regressions. Findings: People with diabetes who survived hospital admission with COVID-19 display worse physical outcomes compared to those without diabetes at 5- and 12-month follow-up. People with diabetes displayed higher fatigue (only at 5 months), frailty, lower physical performance, and health-related quality of life and poorer cognitive function. Differences in outcomes between diabetes status groups were largely consistent from 5 to 12-months. In regression models, differences at 5 and 12 months were attenuated after adjustment for BMI and presence of other long-term conditions. Interpretation: People with diabetes reported worse physical outcomes up to 12 months after hospital discharge with COVID-19 compared to those without diabetes. These data support the need to reduce inequalities in long-term physical and mental health effects of SARS-CoV-2 infection in people with diabetes. Funding: UK Research and Innovation and National Institute for Health Research. The study was approved by the Leeds West Research Ethics Committee (20/YH/0225) and is registered on the ISRCTN Registry (ISRCTN10980107)