Government policy Economic aspects 100 Agriculture and state 83 Congresses 73 Environmental aspects 70 Food supply 70 Climatic changes 63 more ... International cooperation 54 Management 49 Environmental policy 47 Law and legislation 45 Case studies 40 Produce trade 40 Social aspects 38 Prevention 35 Agriculture 33 Research 29 Water resources development 29 Economic policy 28 Natural resources 27 Economic conditions 25 Water-supply 25 Information technology 22 History 21 Women 21 Food industry and trade 20 Planning 20 Social conditions 20 Sustainable development 20 Finance 19 less ...