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Currently, ocean plastic pollution has a big impact on both marine and human health. Thanks to the diversity in renewable energies on boats, diverse de-pollution energy-neutral solutions are envisaged. The aim of this work is to evaluate the relevance of installing horizontal axis wind turbines HAWT on a vessel, with a specific study on the SeaVax, a collecting plastic vessel. Indirectly, this objective also intends to provide the SeaVax company with additional information to the work already carried out.

To that end, the vessel’s energy consumption is assessed for three sectors : propulsion, plastic management and navigation. Moreover, the total daily energy production is evaluated for four scenarios associated to two locations and two time-frames. The overall energy production is divided in two sources : photovoltaic panels (PVs) and wind turbine(s) system. All computations are completed using Excel software and data available in the literature. Based on the estimated energy production of both sources, 26 models of two wind system designs are studied, one with a fixed wind turbine and the other with two moveable wind turbines. By applying constraints to these models, the most suitable model for the SeaVax is selected.

Despite a potential overestimation of 30 % for the energy consumption relative to the propulsion and the lack of information for the navigation, the evaluated energy requirements provided the company with useful and interesting details about the distribution of the energy consumption in different sectors. The evaluation of the overall production of the vessel made it possible to highlight the disparities between the studied scenarios. Moreover, the capacity factors of the solar panels confirm the relevance of their installation. By contrast, although adapted to the SeaVax, none of the HAWT study designs is assumed as relevant.

With regard to the exploitation of wind and solar potentials, the route taken by the SeaVax vessel
represents an interesting approach to be developed under the assumption that for an additional 11 m² of PVs only one studied scenario wouldn’t produce enough to meet the energy demand. Finally, it appears that HAWT are not suitable for vessel energy production. Both in terms of production and propulsion, other tracks are to be exploited with a certain compatibility with photovoltaic panels.

Cleaning oceans --- Renewable energies --- Zero-carbon ships --- Photovoltaic panels --- Wind turbines --- Plastic pollution --- Ingénierie, informatique & technologie > Energie

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Experts from across academic disciplines discuss how plastics are produced, consumed, and discarded and demonstrate the urgent need for legislative frameworks that attend to the complex social and ecological nature of the crisis.

Plastic scrap. --- Plastic scrap --- Environmental aspects. --- Social aspects. --- animals eating plastic. --- climate change. --- disposable plastics. --- ecological activism. --- erosion. --- ethical consumption. --- facts about plastic pollution. --- ocean garbage patch. --- pacific garbage patch. --- plastic chemicals. --- plastic pollution in the ocean. --- plastic straws. --- plastic toxins. --- plastisphere. --- pollution. --- water bottles.

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Plastic (and microplastic) pollution has been described as one of the greatest environmental challenges of our time, and a hallmark of the human-driven epoch known as the Anthropocene. It has gained the attention of the general public, governments, and environmental scientists worldwide. To date, the main focus has been on plastics in the marine environment, but interest in the presence and effects of plastics in freshwaters has increased in the recent years. The occurrence of plastics within inland lakes and rivers, as well as their biota, has been demonstrated. Experiments with freshwater organisms have started to explore the direct and indirect effects resulting from plastic exposure. There is a clear need for further research, and a dedicated space for its dissemination. This book is devoted to highlighting current research from around the world on the prevalence, fate, and effects of plastic in freshwater environments.

Research & information: general --- plastics --- plastic debris --- African great lakes --- freshwater --- beach clean-up --- citizen science --- microplastic --- Enchytraeus crypticus --- enchytraeids --- avoidance test --- toxicity --- oxidative stress --- catalase --- glutathione S-transferase --- polyethylene --- Tubifex tubifex --- aquatic oligochetes --- mortality --- glutathione reductase --- peroxidase --- microplastic exposure --- freshwater environments --- microplastics --- Africa --- ingestion --- Nile tilapia (Oreochromis niloticus) --- catfish (Bagrus Bajad) --- fibers --- ATR-FTIR spectroscopy --- plastic pollution --- oysters --- Mississippi Sound --- fluorescence microscopy --- laser direct infrared analysis --- LDIR --- bulk water sampling --- Bonnet Carré Spillway --- dysbiosis --- microbiome --- Murntuluk / Catfish (Central NT, North NT SE52-03)

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Plastic (and microplastic) pollution has been described as one of the greatest environmental challenges of our time, and a hallmark of the human-driven epoch known as the Anthropocene. It has gained the attention of the general public, governments, and environmental scientists worldwide. To date, the main focus has been on plastics in the marine environment, but interest in the presence and effects of plastics in freshwaters has increased in the recent years. The occurrence of plastics within inland lakes and rivers, as well as their biota, has been demonstrated. Experiments with freshwater organisms have started to explore the direct and indirect effects resulting from plastic exposure. There is a clear need for further research, and a dedicated space for its dissemination. This book is devoted to highlighting current research from around the world on the prevalence, fate, and effects of plastic in freshwater environments.

plastics --- plastic debris --- African great lakes --- freshwater --- beach clean-up --- citizen science --- microplastic --- Enchytraeus crypticus --- enchytraeids --- avoidance test --- toxicity --- oxidative stress --- catalase --- glutathione S-transferase --- polyethylene --- Tubifex tubifex --- aquatic oligochetes --- mortality --- glutathione reductase --- peroxidase --- microplastic exposure --- freshwater environments --- microplastics --- Africa --- ingestion --- Nile tilapia (Oreochromis niloticus) --- catfish (Bagrus Bajad) --- fibers --- ATR-FTIR spectroscopy --- plastic pollution --- oysters --- Mississippi Sound --- fluorescence microscopy --- laser direct infrared analysis --- LDIR --- bulk water sampling --- Bonnet Carré Spillway --- dysbiosis --- microbiome --- n/a --- Bonnet Carré Spillway --- Murntuluk / Catfish (Central NT, North NT SE52-03)

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An eminent philosopher explains why we owe it to future generations to take immediate action on global warmingClimate change is the supreme challenge of our time. Yet despite growing international recognition of the unfolding catastrophe, global carbon emissions continue to rise, hitting an all-time high in 2019. Unless humanity rapidly transitions to renewable energy, it may be too late to stop irreversible ecological damage. In The Pivotal Generation, renowned political philosopher Henry Shue makes an impassioned case for taking immediate, radical action to combat global warming.Shue grounds his argument in a rigorous philosophical analysis of climate change’s moral implications. Unlike previous generations, which didn’t fully understand the danger of burning carbon, we have the knowledge to comprehend and control rising carbon dioxide levels. And unlike future generations, we still have time to mitigate the worst effects of global warming. This generation has the power, and thus the responsibility, to save the planet. Shirking that responsibility only leaves the next generation with an even heavier burden—one they may find impossible to bear.Written in direct, accessible language, The Pivotal Generation approaches the latest scientific research with a singular moral clarity. It’s an urgently needed call to action for anyone concerned about the planet’s future.

Climate change mitigation --- Environmental policy - United States --- Environmental ethics --- Climatic changes - Forecasting --- Climate change mitigation. --- Climate mitigation --- Climatic changes --- Climatic mitigation --- Mitigation of climate change --- Environmental protection --- Mitigation --- Acid rain. --- Alternative energy. --- American Recovery and Reinvestment Act of 2009. --- Analogy. --- Arctic National Wildlife Refuge. --- BNP Paribas. --- Bank. --- Behalf. --- Biofuel. --- Bribery. --- Business plan. --- Carbon Energy. --- Carbon capture and storage. --- Chesapeake Energy. --- China Construction Bank. --- Climate change. --- Climate risk. --- Climate. --- Combustion. --- Competitiveness. --- Contempt. --- Core business. --- Criticism. --- Customer. --- Deep sea. --- Deforestation. --- Dodd–Frank Wall Street Reform and Consumer Protection Act. --- Economic cost. --- Economy and Society. --- Electricity generation. --- Energy development. --- Environmental impact of the coal industry. --- Ethane (data page). --- Every Nation. --- Externality. --- Filing (legal). --- Filing (metalworking). --- Financial Regulator. --- Fossil fuel. --- Frustration. --- Future generation. --- Geological formation. --- Global warming. --- Government. --- Gradualism. --- Grandparent. --- Greenhouse gas. --- Greenland ice sheet. --- Heat flux. --- Hedge fund. --- High-voltage direct current. --- Incentive. --- Infrastructure. --- Intermittency. --- International Energy Agency. --- Low-carbon economy. --- Market mechanism. --- Melting. --- Methane. --- Misinformation. --- National wealth. --- Natural gas. --- Norm (social). --- Occidental Petroleum. --- Occupational safety and health. --- Oil well. --- Ownership (psychology). --- Payment. --- Petroleum industry. --- Pipeline transport. --- Plastic pollution. --- Plastic. --- Political corruption. --- Pollution. --- Positive feedback. --- Requirement. --- Responsiveness. --- Saudi Arabia. --- Saving. --- Scale In. --- Scientist. --- Sea level rise. --- Sea level. --- Shorthand. --- Social disruption. --- Sociotechnical system. --- Soil. --- Sovereign state. --- Standard of living. --- Suggestion. --- Technology. --- Too big to fail. --- Useful Life. --- Vegetation. --- Water supply. --- Wealth. --- Window function. --- World economy. --- Year. --- ethylene. --- Environmental policy --- Environmental ethics. --- Forecasting.