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Current warming will reduce yields unless maize breeding and seed systems adapt immediately

A. J. Challinor, A.-K. Koehler , J. Ramirez-Villegas, S. Whitfield and B. Das

The development of crop varieties that are better suited to new climatic conditions is vital for future food production. Increases in mean temperature accelerate crop development, resulting in shorter crop durations and reduced time to accumulate biomass and yield. The…

Large differences in regional precipitation change between a first and second 2 K of global warming

Peter Good , Ben B.B. Booth , Robin Chadwick , Ed Hawkins, Alexandra Jonko & Jason A. Lowe

For adaptation and mitigation planning, stakeholders need reliable information about regional precipitation changes under different emissions scenarios and for different time periods. A significant amount of current planning effort assumes that each K of global warming produces roughly the same…

The onset and cessation of seasonal rainfall over Africa

Caroline M. Dunning, Emily C. L. Black, Richard P. Allan

Variation in the seasonal cycle of African rainfall is of key importance for agriculture. Here an objective method of determining the timing of onset and cessation is, for the first time, extended to the whole of Africa. The method is…

Urban groundwater quality in sub-Saharan Africa: current status and implications for water security and public health

D. J. Lapworth, D. C. W. Nkhuwa, J. Okotto-Okotto, S. Pedley, M. E. Stuart, M. N. Tijani & J. Wright

Groundwater resources are important sources of drinking water in Africa, and they are hugely important in sustaining urban livelihoods and supporting a diverse range of commercial and agricultural activities. Groundwater has an important role in improving health in sub-Saharan Africa…

The Use of Remotely Sensed Rainfall for Managing Drought Risk: A Case Study of Weather Index Insurance in Zambia

Emily Black, Elena Tarnavsky, Ross Maidment , Helen Greatrex , Agrotosh Mookerjee, Tristan Quaife and Matthew Brown

Remotely sensed rainfall is increasingly being used to manage climate-related risk in gauge sparse regions. Applications based on such data must make maximal use of the skill of the methodology in order to avoid doing harm by providing misleading information.…

Recent observed and simulated changes in precipitation over Africa

Ross I. Maidment, Richard P. Allan, and Emily Black

Multiple observational data sets and atmosphere-only simulations from the Coupled ModelIntercomparison Project Phase 5 are analysed to characterise recent rainfall variability and trends overAfrica focusing on 1983–2010. Data sets exhibiting spurious variability, linked in part to a reduction in raingauge…

Teleconnections between Ethiopian rainfall variability and global SSTs: observations and methods for model evaluation

Mekonnen Adnew Degefu, David P. Rowell and Woldeamlak Bewket

Rainfall variability in Ethiopia has significant effects on rainfed agriculture and hydropower, so understanding its association with slowly varying global sea surface temperatures (SSTs) is potentially important for prediction purposes. This research provides an overview of the seasonality and spatial…

Evaluation for the Performance of the CORDEX Regional Climate Models in Simulating Rainfall Characteristics over Mbarali River Catchment in the Rufiji Basin, Tanzania

Edmund Mutayoba, Japhet J. Kashaigili

This study aims to evaluate the performance of the individual Regional Climate Models (RCMs) used in Coordinated Regional Climate Downscaling Experiment (CORDEX) and the ensemble average of the four RCMs to feign the characteristics of the rainfall pattern for the…

Climate change adaptation and cross-sectoral policy coherence in southern Africa

UMFULA

To be effective, cross-cutting issues like climate change adaptation need to be mainstreamed across multiple sectors and for this greater policy coherence is essential. Using the cases of Malawi, Tanzania and Zambia, this paper investigates the extent of coherence in…

Scientific capacity development in climate change related disciplines: Analysis of barriers, opportunities and good practice in Africa

Leigh Cobban, Mark New, Michael Baudoin, Anna Steynor, Katinka Waagsaether, Chris Jack, Julius Kamau, Sarah Correy, Robert Ochieng, Heila Lotz-Sisiska, Cherie Forbes, Jean-Pierre Roux, Jon Padgham, Katie Dietrich, Sarah Schweizer, Abby Gwaltney

This comprehensive study investigated the needs and experiences of African researchers working in climate change-related disciplines. It focused largely on early career researchers based at African institutions (largely universities and national and regional research institutions) who have received support from…