A5070179069- Atmospheric and Environmental Gas Dynamics
- Carbon Dioxide Capture Technologies
- Energy and Environment Impacts
- Climate Change Policy and Economics
- International Maritime Law Issues
- Atmospheric chemistry and aerosols
- Global Energy and Sustainability Research
- Social Acceptance of Renewable Energy
- Land Use and Ecosystem Services
- Remote Sensing in Agriculture
- Sustainability and Climate Change Governance
- Energy, Environment, and Transportation Policies
- Climate Change and Sustainable Development
- Oil, Gas, and Environmental Issues
- Plant Water Relations and Carbon Dynamics
- Forest ecology and management
- Integrated Energy Systems Optimization
- Tree-ring climate responses
- Climate variability and models
- Fire effects on ecosystems
University of the Witwatersrand
2022-2024
Abstract. A key goal of the Paris Agreement (PA) is to reach net-zero greenhouse gas (GHG) emissions by 2050 globally, which requires mitigation efforts from all countries. Africa's rapidly growing population and gross domestic product (GDP) make this continent important for GHG emission trends. In paper, we study carbon dioxide (CO2), methane (CH4) nitrous oxide (N2O) in Africa over 3 decades (1990–2018). We compare bottom-up (BU) approaches, including United Nations Convention Framework on...
Abstract As part of the REgional Carbon Cycle Assessment and Processes Phase 2 (RECCAP2) project, we developed a comprehensive African Greenhouse gases (GHG) budget covering 2000 to 2019 (RECCAP1 RECCAP2 time periods), assessed uncertainties trends over time. We compared bottom‐up process‐based models, data‐driven remotely sensed products, national GHG inventories with top‐down atmospheric inversions, accounting also for lateral fluxes. incorporated emission estimates derived from novel...
Abstract Projections of future carbon sinks and stocks are important because they show how the world's ecosystems will respond to elevated CO 2 changes in climate. Moreover, crucial inform policy decisions around emissions reductions stay within global warming levels identified by Paris Agreement. However, Earth System Models from 6th Coupled Model Intercomparison Project (CMIP6) substantial spread projections—especially terrestrial cycle, leading a large uncertainty our knowledge any...
Climate change is acknowledged as one of the greatest environmental and development challenges society faces. Many organisations are now encouraged to conduct assessments climate risks they will be exposed over next decades. The Global Change Institute (University Witwatersrand, South Africa) conducted such an assessment for southern Africa region, identify some main clusters climate-change related risks. A list fifty was scored ranked using a modified-Delphi process; iterative process...
As part of the REgional Carbon Cycle Assessment and Processes Phase 2 (RECCAP2) project, we developed a comprehensive African Greenhouse gases (GHG) budget for period 2010-2019 compared it to over 1985-2009 (RECCAP1) period. We considered bottom-up process-based models, data-driven remotely sensed products, national GHG inventories in comparison with top-down atmospheric inversions, accounting also lateral fluxes. incorporated emission estimates derived from novel methodologies termites,...
Plantation forests were introduced into South Africa to satisfy the regional demand for wood-based products, which are largely found in Mpumalanga province. To better understand impacts of climate on dominant height growth commercially important plantation species, enumeration data collected from 2012 2023 was scrutinised, representing 34740 plots 2082 compartments. Statistically significant multiple linear regression models developed predict heights Pinus elliottii, taeda, patula, and...
 A key goal of the Paris Agreement (PA) is to reach net-zero greenhouse gas (GHG) emissions by 2050 globally, which requires mitigation efforts from all countries. Africa’s rapidly growing population and gross domestic product (GDP) make this continent important for GHG emission trends. In project we study carbon dioxide (CO2), methane (CH4) nitrous oxide (N2O) in Africa over 3 decades. We compare bottom-up (BU) approaches, including United Nations Convention Framework on...
Rising greenhouse gas (GHG) emissions in Africa is a cause for concern. With growing population and its associated requirements energy, food socio-economic development, climate change impacts will further exacerbate the current trend. A recent budget synthesised most comprehensive modelling observational data available period 2010-2019 (Ernst et al. 2024), showing that continent has likely become net carbon source to atmosphere. In this Research brief, key findings of GHG highlighted.
Abstract. A key goal of the Paris Agreement (PA) is to reach net-zero Greenhouse Gasses (GHG) emissions by 2050 globally, which requires mitigation efforts from all countries. Africa’s rapidly growing population and GDP makes this continent important for GHG emission trends. In paper, we study carbon dioxide (CO2), methane (CH4) nitrous oxide (N2O) in Africa over three decades (1990–2018). We compare relative merits data products bottom-up approaches including UNFCCC national inventories,...
Africa contributes significantly to the global greenhouse gases (GHG) budget through extensive land use change that is driven by rapid population growth and low human development status. As part of REgional Carbon Cycle Assessment Processes Phase 2 (RECCAP2) project, we developed a comprehensive GHG for period 2009-2019 Africa. We considered bottom-up process-based models, data-driven remotely sensed products, national gas inventories in comparison with top-down atmospheric inversions,...