Author
Ogunlade Davidson
Bio: Ogunlade Davidson is an academic researcher from University of Cape Town. The author has contributed to research in topics: Sustainable development & Climate change. The author has an hindex of 13, co-authored 16 publications receiving 13060 citations.
Papers
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01 Jan 2008
5,380 citations
01 Jul 2007
TL;DR: The fourth Assessment Report (AR4) of the Intergovernmental Panel on Climate Change (IPCC) provides a comprehensive, state-of-the-art and worldwide overview of scientific knowledge related to the mitigation of climate change as discussed by the authors.
Abstract: This volume of the Fourth Assessment Report (AR4) of the Intergovernmental Panel on Climate Change (IPCC) provides a comprehensive, state-of-the-art and worldwide overview of scientific knowledge related to the mitigation of climate change. It includes a detailed assessment of costs and potentials of mitigation technologies and practices, implementation barriers, and policy options for the sectors: energy supply, transport, buildings, industry, agriculture, forestry and waste management. It links sustainable development policies with climate change practices. This volume will again be the standard reference for all those concerned with climate change. Contents: Foreword; Preface; Summary for policymakers; Technical Summary; 1. Introduction; 2. Framing issues; 3. Issues related to mitigation in the long term context; 4. Energy supply; 5. Transport and its infrastructure; 6. Residential and commercial buildings; 7. Industry; 8. Agriculture; 9. Forestry; 10. Waste management; 11. Mitigation from a cross sectoral perspective; 12. Sustainable development and mitigation; 13. Policies, instruments and co-operative agreements. 300 figs., 50 tabs., 3 annexes.
1,073 citations
Book•
01 Jul 2001
TL;DR: In this article, the authors present the technological and economic potential of options to enhance, maintain and manage biological carbon reservoirs and geo-engineering, as well as the barriers, opportunities and market potential of technologies and practices.
Abstract: Summary for policy makers Technical summary Introduction 1. Scope of the report 2. Greenhouse gas emissions: mitigation scenarios and implications 3. Technological and economic potential of GHG emissions reduction 4. Technological and economic potential of options to enhance, maintain and manage biological carbon reservoirs and geo-engineering 5. Barriers, opportunities and market potential of technologies and practices 6. Policies, measures and instruments 7. Costing methodologies for mitigation 8. Global, regional and national costs and ancillary benefits of mitigation 9. Sector costs and ancillary benefits of mitigation 10. Decision making frameworks Index.
719 citations
TL;DR: In this article, the authors show that some of the most adverse effects of climate change will be in developing countries, where populations are most vulnerable and least likely to easily adapt to climate change.
279 citations
Cited by
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TL;DR: It is shown that tremendous progress could be made by halting agricultural expansion, closing ‘yield gaps’ on underperforming lands, increasing cropping efficiency, shifting diets and reducing waste, which could double food production while greatly reducing the environmental impacts of agriculture.
Abstract: Increasing population and consumption are placing unprecedented demands on agriculture and natural resources. Today, approximately a billion people are chronically malnourished while our agricultural systems are concurrently degrading land, water, biodiversity and climate on a global scale. To meet the world's future food security and sustainability needs, food production must grow substantially while, at the same time, agriculture's environmental footprint must shrink dramatically. Here we analyse solutions to this dilemma, showing that tremendous progress could be made by halting agricultural expansion, closing 'yield gaps' on underperforming lands, increasing cropping efficiency, shifting diets and reducing waste. Together, these strategies could double food production while greatly reducing the environmental impacts of agriculture.
5,954 citations
Joint Global Change Research Institute1, National Center for Atmospheric Research2, Victoria University of Wellington3, Electric Power Research Institute4, Netherlands Environmental Assessment Agency5, Finnish Environment Institute6, National Institute for Environmental Studies7, Met Office8, International Institute for Applied Systems Analysis9, Vienna University of Technology10, National Oceanic and Atmospheric Administration11, Stanford University12, Oak Ridge National Laboratory13
TL;DR: A new process for creating plausible scenarios to investigate some of the most challenging and important questions about climate change confronting the global community is described.
Abstract: Advances in the science and observation of climate change are providing a clearer understanding of the inherent variability of Earth's climate system and its likely response to human and natural influences. The implications of climate change for the environment and society will depend not only on the response of the Earth system to changes in radiative forcings, but also on how humankind responds through changes in technology, economies, lifestyle and policy. Extensive uncertainties exist in future forcings of and responses to climate change, necessitating the use of scenarios of the future to explore the potential consequences of different response options. To date, such scenarios have not adequately examined crucial possibilities, such as climate change mitigation and adaptation, and have relied on research processes that slowed the exchange of information among physical, biological and social scientists. Here we describe a new process for creating plausible scenarios to investigate some of the most challenging and important questions about climate change confronting the global community.
5,670 citations
TL;DR: In this paper, the authors compared the natural and anthropogenic controls on the conversion of unreactive N2 to more reactive forms of nitrogen (Nr) and found that human activities increasingly dominate the N budget at the global and at most regional scales, and the terrestrial and open ocean N budgets are essentially dis-connected.
Abstract: This paper contrasts the natural and anthropogenic controls on the conversion of unreactive N2 to more reactive forms of nitrogen (Nr). A variety of data sets are used to construct global N budgets for 1860 and the early 1990s and to make projections for the global N budget in 2050. Regional N budgets for Asia, North America, and other major regions for the early 1990s, as well as the marine N budget, are presented to highlight the dominant fluxes of nitrogen in each region. Important findings are that human activities increasingly dominate the N budget at the global and at most regional scales, the terrestrial and open ocean N budgets are essentially dis- connected, and the fixed forms of N are accumulating in most environmental reservoirs. The largest uncertainties in our understanding of the N budget at most scales are the rates of natural biological nitrogen fixation, the amount of Nr storage in most environmental reservoirs, and the production rates of N2 by denitrification.
4,555 citations
TL;DR: Climate change undermines a basic assumption that historically has facilitated management of water supplies, demands, and risks and threatens to derail efforts to conserve and manage water resources.
Abstract: Climate change undermines a basic assumption that historically has facilitated management of water supplies, demands, and risks.
3,438 citations
University of Gothenburg1, University College Cork2, Paul Scherrer Institute3, Weizmann Institute of Science4, Norwegian Meteorological Institute5, Chalmers University of Technology6, University of Antwerp7, Carnegie Mellon University8, Centre national de la recherche scientifique9, University of Lyon10, University of California, Berkeley11, University of York12, Leibniz Institute for Neurobiology13, University of Mainz14, University of Florida15, University of Colorado Boulder16, Forschungszentrum Jülich17, Ghent University18, University of Manchester19, Aix-Marseille University20, California Institute of Technology21
TL;DR: In this article, an overview of the atmospheric degradation mechanisms for SOA precursors, gas-particle partitioning theory and analytical techniques used to determine the chemical composition of SOA is presented.
Abstract: Secondary organic aerosol (SOA) accounts for a significant fraction of ambient tropospheric aerosol and a detailed knowledge of the formation, properties and transformation of SOA is therefore required to evaluate its impact on atmospheric processes, climate and human health. The chemical and physical processes associated with SOA formation are complex and varied, and, despite considerable progress in recent years, a quantitative and predictive understanding of SOA formation does not exist and therefore represents a major research challenge in atmospheric science. This review begins with an update on the current state of knowledge on the global SOA budget and is followed by an overview of the atmospheric degradation mechanisms for SOA precursors, gas-particle partitioning theory and the analytical techniques used to determine the chemical composition of SOA. A survey of recent laboratory, field and modeling studies is also presented. The following topical and emerging issues are highlighted and discussed in detail: molecular characterization of biogenic SOA constituents, condensed phase reactions and oligomerization, the interaction of atmospheric organic components with sulfuric acid, the chemical and photochemical processing of organics in the atmospheric aqueous phase, aerosol formation from real plant emissions, interaction of atmospheric organic components with water, thermodynamics and mixtures in atmospheric models. Finally, the major challenges ahead in laboratory, field and modeling studies of SOA are discussed and recommendations for future research directions are proposed.
3,324 citations