A5066706659- Climate change impacts on agriculture
- Climate variability and models
- Water resources management and optimization
- Water-Energy-Food Nexus Studies
- Hydrology and Watershed Management Studies
- Climate Change, Adaptation, Migration
- Hydrology and Drought Analysis
- Energy and Environment Impacts
- Sustainability and Climate Change Governance
- Transboundary Water Resource Management
- Flood Risk Assessment and Management
- Meteorological Phenomena and Simulations
- Aquatic Ecosystems and Biodiversity
- Agricultural risk and resilience
- Climate Change Policy and Economics
- Rangeland Management and Livestock Ecology
- Plant responses to elevated CO2
- Plant Water Relations and Carbon Dynamics
- Remote Sensing and Land Use
- Atmospheric and Environmental Gas Dynamics
- Disaster Management and Resilience
- Soil erosion and sediment transport
- Conservation, Biodiversity, and Resource Management
- Urban and Rural Development Challenges
- demographic modeling and climate adaptation
London School of Economics and Political Science
2016-2025
Centre for Climate Change Economics and Policy
2023-2024
Economic and Social Research Council
2023
University of Sussex
2021
Royal Observatory in Greenwich
2017
University of London
2017
University of East Anglia
2003-2013
Tyndall Centre
2003-2012
UK Centre for Ecology & Hydrology
2004
West Heath Hospital
2004
The world’s climate is changing and will continue to change into the coming century at rates projected be unprecedented in recent human history. risks associated with these changes are real but highly uncertain. Societal vulnerability may exacerbate ongoing social economic challenges, particularly for those parts of societies dependent on resources that sensitive climate. Risks apparent agriculture, fisheries many other components constitute livelihood rural populations developing countries....
A range of different statistical downscaling models was calibrated using both observed and general circulation model (GCM) generated daily precipitation time series intercompared. The GCM used the U.K. Meteorological Office, Hadley Centre's coupled ocean/atmosphere (HadCM2) forced by combined CO 2 sulfate aerosol changes. Climate results for 1980–1999 (present) 2080–2099 (future) were used, six regions across United States. methods compared weather generator techniques (the standard “WGEN”...
Extreme heat stress during the crop reproductive period can be critical for productivity. Projected changes in frequency and severity of extreme climatic events are expected to negatively impact yields global food production. This study applies model PEGASUS quantify, first time at scale, impacts on maize, spring wheat soybean resulting from 72 climate change scenarios 21st century. Our results project maize face progressively worse under a range RCPs but improve globally through 2080s due...
The Upper Blue Nile river basin is the largest in Ethiopia terms of volume discharge, second area, and contributes over 50 per cent long‐term flow Main Nile. This paper provides a review nature variability climate hydrology source region Nile‐the central Ethiopian Highlands. Annual rainfall decreases from south‐west (>2000 mm) to north‐east (around 1000 mm), with about 70 occurring between June September. A basin‐wide time series annual constructed 11 gauges for period 1900 1998 has mean...
Abstract The ‘nexus’ between water, energy and food (WEF) has gained increasing attention globally in research, business policy spheres. We review the premise of recent initiatives framed around nexus, examine challenge achieving type disciplinary boundary crossing promoted by nexus agenda consider how to operationalise what date been a largely paper exercise. WEF through international meetings calls for new research agendas. It is clear from literature that many aims approaches pre‐date...
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Numerous factors are associated with poverty and underdevelopment in Africa, including climate variability. Rainfall, more generally, implicated directly the United Nations “Millennium Development Goals” to eradicate extreme hunger, reduce child mortality incidence of diseases such as malaria by target date 2015. But, Africa is not currently on meet these goals. We pose a number questions from science perspective aimed at understanding this background: Is there common origin that constrain...
Abstract The aim of this study is to characterise rainfall variability and trend in the drought‐prone Amhara Regional State Ethiopia using standard statistical descriptors. A review previous studies Ethiopian shows different conclusions between about existence trends primarily due their use periods analysis. Various indicator series are presented analysed for on annual, seasonal daily time steps (including wet‐day amounts probabilities, percentiles dry spell lengths). Two used analysis:...
Abstract River basin rainfall series and extensive river flow records are used to characterize improve understanding of spatial temporal variability in sub-Saharan African water resources during the last century. Nine major international basins were chosen for examination primarily their extensive, good quality records. A range statistical descriptors highlight substantial flows [e.g., differences (flows) up −14% (−51%) between 1931–60 1961–90 West Africa], marked regional differences,...
China is the world's largest emitter of greenhouse gases (GHGs) and agricultural sector in responsible for 17–20% annual emissions 62% total freshwater use. Groundwater abstraction has increased rapidly from 10 km3 yr−1 1950s to more than 100 2000s, such that roughly 70% irrigated area northern now groundwater-fed. Pumping water irrigation one most energy consuming on-farm processes; however, date this source GHG elsewhere been relatively neglected. We derive first detailed estimate...
Ecological citizenship presents a normative account of how citizens should conduct their lives, reducing environmental impact. Little research has characterised ecological in practice or the context climate change. Q methodology is applied to case study Canada scrutinise individuals respond The results identify four factors – communitarian, systemist, sceptic and economist three which suggest strongly that participants act on perceived individual responsibility for Practising motivates...
Abstract Decision‐Making Under Uncertainty (DMUU) approaches have been less utilized in developing countries than developed for water resources contexts. High climate vulnerability and rapid socioeconomic change often characterize country contexts, making DMUU relevant. We develop an iterative multi‐method approach, including scenario generation, coproduction with stakeholders modeling. apply this approach to explore the robustness of adaptation options pathways against future uncertainties...