Preprints
Filtering by Subject: Sustainability
Autonomous Passage Planning for a Polar Vessel
Published: 2022-08-31
Subjects: Artificial Intelligence and Robotics, Computer Sciences, Earth Sciences, Environmental Sciences, Oceanography and Atmospheric Sciences and Meteorology, Other Earth Sciences, Other Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics, Sustainability
We introduce a method for long-distance maritime route planning in polar regions, taking into account complex changing environmental conditions. The method allows the construction of optimised routes, describing the three main stages of the process: discrete modelling of the environmental conditions using a non-uniform mesh, the construction of mesh-optimal paths, and path smoothing. In order to [...]
Fighting symptom or root cause? - The need for shifting the focus in climate politics from greenhouse gases to environmental protection
Published: 2022-08-16
Subjects: Environmental Sciences, Natural Resources and Conservation, Natural Resources Management and Policy, Social and Behavioral Sciences, Sustainability
Addressing the environmental crisis requires a substantial change of our current lifestyle. Yet, in media coverage and political communication, climate change has taken the lead over other aspects such as biodiversity loss and one may sometimes get the impression that reducing greenhouse gas emissions is fighting the root cause itself. The atmosphere, however, does not respond linearly to our [...]
Majority of 21st century global irrigation expansion has been in water stressed regions
Published: 2022-08-09
Subjects: Agriculture, Spatial Science, Sustainability
The expansion of irrigated agriculture has increased global crop production but resulted in widespread stress to freshwater resources. Ensuring that increases in irrigated production only occur in places where water is relatively abundant is a key objective of sustainable agriculture, and knowledge of how irrigated land has evolved is important for measuring progress towards water sustainability. [...]
Field’s Spatial Variation Influenced Outcomes more so than N-fertiliser, FYM, Cover Crops or Their Legacy Effects Following Conversion to a No-till Arable System
Published: 2022-08-04
Subjects: Agricultural Science, Agriculture, Agronomy and Crop Sciences Life Sciences, Environmental Indicators and Impact Assessment, Soil Science, Sustainability
No-till in agricultural arable systems is a practice that offers benefits to soil health. Combined with methods such as the incorporation of crop residues and manures, no-till can influence the dynamics of soil organic carbon (SOC) and organic matter (SOM), crop productivity and nutrient status. These turnovers are shaped by spatial and temporal factors and associated microbial mineralisation [...]
A new consistent framework for assignment of safe operating space to B2C and B2B industries for use in Absolute Environmental Sustainability Assessments
Published: 2022-07-25
Subjects: Engineering, Environmental Engineering, Sustainability
The planetary boundaries define a safe operating space for humanity to act within without potentially destabilizing the planet. The safe operating space is often used a sustainability reference in Absolute Environmental Sustainability Assessments (AESAs) where a share of the safe operating space (SoSOS) is assigned to the assessed activity. An identified challenge, is that current methods are [...]
Groundwater resource allocation in British Columbia: challenges and ways forward
Published: 2022-06-24
Subjects: Environmental Engineering, Hydrology, Sustainability, Water Resource Management
Groundwater allocation in British Columbia is facing a number of important challenges as groundwater is licensed under the Water Sustainability Act and potentially included in modern treaties. These challenges include acknowledging the importance of groundwater in supporting environmental flow needs and human water use, the uncertainty and irrelevance of annual recharge estimates, and the [...]
Potential for Perceived Failure of Stratospheric Aerosol Injection Deployment
Published: 2022-06-17
Subjects: Atmospheric Sciences, Climate, Sustainability
As anthropogenic activities warm the Earth, the fundamental solution of reducing greenhouse gas emissions remains elusive. Given this mitigation gap, global warming may lead to intolerable climate changes as adaptive capacity is exceeded. Thus, there is emerging interest in solar radiation modification, which is the process of deliberately increasing Earth's albedo to cool the planet. [...]
Exploration of urban sustainability of India through the lens of sustainable development goals
Published: 2022-05-23
Subjects: Sustainability
Sustainable Development Goal (SDG) index is a recognized metric for measuring progress in the UN SDGs. However, national or multinational-level analyses are more prevalent than sub-national types. We analysed the performance of 14 SDGs for 56 Indian cities (grouped into 6 regions) with available 77 indicators (2020-2021). Pearson’s correlation, hierarchical clustering, data envelopment analysis [...]
Quantifying excess heavy metal concentrations in drainage basins using conservative mixing models
Published: 2022-05-13
Subjects: Earth Sciences, Environmental Sciences, Geochemistry, Geomorphology, Physical Sciences and Mathematics, Sustainability, Water Resource Management
High concentrations of heavy metals and other pollutants in river sediments can have detrimental effects on the ecosystem and humans. The composition of river sediments throughout drainage basins therefore provides important information for environmental monitoring. An obvious first step for using river sediment compositions for monitoring is to quantify natural baseline concentrations. Once [...]
Pipeline availability limits on the feasibility of global coal-to-gas switching in the power sector
Published: 2022-05-02
Subjects: Oil, Gas, and Energy, Sustainability
Coal-to-gas switching in the power sector, as happened in the US, has been a key driver of near-term greenhouse gas emissions reductions. Can this success be replicated around the world? Here, we explore the limits of a global, plant-level, coal-to-gas transition arising from pipeline availability constraints. Globally, only 43% of coal capacity is within 14 km of a nearby pipeline, the median [...]
Groundwater connections and sustainability in social-ecological systems
Published: 2022-04-08
Subjects: Dynamical Systems, Hydrology, Natural Resources and Conservation, Natural Resources Management and Policy, Nature and Society Relations, Sustainability, Water Resource Management
Groundwater resources are connected with social, economic, ecological, and Earth systems. We introduce the framing of groundwater-connected systems to better represent the nature and complexity of these connections in data collection, scientific investigations, governance and management approaches, and groundwater education. Groundwater-connected systems are social, economic, ecological, or Earth [...]
Knowledge co-production reveals nuanced societal dynamics and sectoral connections in mapping sustainable human-natural systems
Published: 2022-04-08
Subjects: Human Geography, Nature and Society Relations, Sustainability
The UN Sustainable Development Goals (SDGs) encompass environmental, social, and economic dimensions which are linked to the characteristics of place and have a strong local dimension. They are interconnected at local scales in complex ways which makes progress towards them difficult to predict. To understand how these interconnections play out at the local scale, we used knowledge co-production [...]
Economic and biophysical limits to seaweed-based climate solutions
Published: 2022-02-12
Subjects: Earth Sciences, Environmental Sciences, Natural Resource Economics, Other Earth Sciences, Other Environmental Sciences, Sustainability
Net-zero greenhouse gas emissions targets are driving interest in opportunities for biomass-based negative emissions and bioenergy, including from marine sources such as seaweed. Yet the biophysical and economic limits to farming seaweed at scales relevant to the global carbon budget have not been assessed in detail. We use coupled seaweed growth and technoeconomic models to estimate the costs of [...]
Quantifying Streamflow Depletion from Groundwater Pumping: A Practical Review of Past and Emerging Approaches for Water Management
Published: 2022-01-07
Subjects: Environmental Indicators and Impact Assessment, Hydrology, Natural Resources Management and Policy, Sustainability, Water Resource Management
Groundwater pumping can cause reductions in streamflow (“streamflow depletion”) that must be quantified for conjunctive management of groundwater and surface water resources. However, streamflow depletion cannot be measured directly and is challenging to estimate because pumping impacts are masked by streamflow variability due to other factors. Here, we conduct a management-focused review of [...]
Evaluating essential features of proppant transport at engineering scales combining field measurements with machine learning algorithms
Published: 2021-12-06
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Environmental Sciences, Geology, Hydraulic Engineering, Oil, Gas, and Energy, Sustainability
The characterization of the proppant transport at a field-engineering scale is still challenging due to the lack of direct subsurface measurements. Features that control the proppant transport may link the experimental and numerical observations to the practical operations at a field scale. To improve the numerical and laboratory simulations, we propose a machine-learning-based workflow to [...]