Breisinger, C., Zhu, T., Al Riffai, P., Nelson, G., Robertson, R., Funes, J. and Verner, D. (2011) Global and Local Economic Impacts of Climate Change in Syria and Options for Adaptation IFPRI Discussion Paper 01091. Development Strategy and Governance Division, International Food Policy Research Institute. Washington DC.
 Stern, N. (2006) Review on the Economics of Climate Change. http://www.sternreview.org.uk
 World Bank (2007) The Impact of Sea Level Rise on Developing Countries: A Comparative Analysis. World Bank Policy Research Working Paper WPS4136, World Bank, Washington DC.
 Garnaut, R. (2008) The Garnaut Climate Change Review: Final Report. www.garnautreview.org.au/index.htm
 Thurlow, J., Zhu, T. and Diao, X. (2009) The Impact of Climate Variability and Change on Economic Growth and Poverty in Zambia. IFPRI Discussion Paper 00890, International Food Policy Research Institute, Washington DC.
 Yu, B., You, L. and Fan, S. (2010) Toward a Typology of Food Security in Developing Countries. IFPRI Discussion Paper 00945, International Food Policy Research Institute, Washington DC.
 Breisinger, C., van Rheenen, T., Ringler, C., Pratt, A.N., Minot, N., Aragon, C., Yu, B., Ecker, O. and Zhu, T. (2010) Food Security and Economic Development in the Middle East and North Africa: Current State and Future Perspectives. IFPRI Discussion Paper 00985, International Food Policy Research Institute, Washington DC.
 Yu, W., Thurlow, J., Alam, M., Hassan, A., Khan, A.S., Ruane, A., Rosenzweig, C., et al. (2010) Climate Change Risks and Food Security in Bangladesh. EarthScan, London.
 Nelson, G.C., Rosegrant, M.W., Koo, J., Robertson, R., Sulser, T., Zhu, T., et al. (2009) Climate Change: Impact on Agriculture and Costs of Adaptation. Food Policy Report, IFPRI, Washington DC.
 Efe, S.I. (2009) Climate Change and Food Security in African: Delta State Nigeria Experience. Anyadike, R.N.C., Madu, L.A. and Ajaero, Eds., Conference Proceeding on Climate Change and the Nigerian Environment, Nsukka, 29 June-2 July 2009, 105-126.
 IEA (2010) World Energy Outlook 2010. IEA, Paris.
 DOE (UK Department of Energy and Climate Change) (2010) Estimated Impacts of Energy and Climate Change Policies on Energy Prices and Bills. www.decc.gov.uk
 Maunder, W.J. (1970) The Values of Weather. Methen, London.
 Maunder, W.J. (1972) The Formulation of Weather Indices for Use in Climatic-Economic Studies a New Zealand Example. New Zealand Geographers, 28, 130-150. http://dx.doi.org/10.1111/j.1745-7939.1972.tb01179.x
 Ayoade, J.O. (2004) Climate Change: A Synopsis of Its Nature, Causes, Effects and Management. Vantage Publishers Ltd., Ibadan.
 Efe, S.I. and Ojoh, C. (2011) Climate Variability and Commercial Activities in Warri Metropolis, Nigeria. Journal of Social and Management Sciences, 6, 61-68.
 Efe, S.I. and Ojoh, C. (2013) Climate Variability and Malaria Prevalence in Warri Metropolis. Atmospheric and Climate Science, 3, 132-140.
 Efe, S.I. and Ojoh, C.O. (2013) Spatial Distribution of Malaria in Warri Metropolis. Open Journal of Epidemiology, 3, 118-124. http://dx.doi.org/10.4236/ojepi.2013.33018
 Weli, V.E. and Efe, S.I. (2015) Climate and Epidemiology of Malaria in Port Harcourt Region, Nigeria. AJCC, in Press.
 Efe, S.I. (2006) Regionalisation of Nigeria Climate: A Recent Approach. The Nigerian Academic Forum, 11, 32-39.
 Efe, S.I. (2011) Climate Change and Flood Hazards in the Niger Delta Region of Nigeria. Niger Delta Research Digest, 5, 43-60.
 Elenwo, I. and Efe, S.I. (2014) Flood Problem in Port Harcourt, Nigeria. International Journal of Environmental Engineering and Natural Resources, 1, 97-107.
 Efe, S.I. (2012) Climate Change and Environmental Degradation: The Case of Acid Rain in Nigeria. In: IIiya, M.A. and Dankani, I.M., Eds., Climate Change and Sustainable Development in Nigeria, Association of Nigerian Geographers (ANG), 199-228.