Ngā kaupapa kua tūtohitia
- Economic aspects
- Government policy
- Climatic changes 28 ngā hua
- Emigration and immigration 21 ngā hua
- Environmental aspects 20 ngā hua
- Social aspects 18 ngā hua
- Agriculture 16 ngā hua
- Environmental policy 12 ngā hua
- Agriculture and state 10 ngā hua
- Economic conditions 10 ngā hua
- Technological innovations 8 ngā hua
- Congresses 7 ngā hua
- Globalization 7 ngā hua
- International cooperation 7 ngā hua
- Pollution 7 ngā hua
- Food supply 6 ngā hua
- Greenhouse gas mitigation 6 ngā hua
- History 6 ngā hua
- Produce trade 6 ngā hua
- Water-supply 6 ngā hua
- Climate change mitigation 5 ngā hua
- Economic development 5 ngā hua
- Gambling 5 ngā hua
- Global warming 5 ngā hua
- Greenhouse gases 5 ngā hua
- Older people 5 ngā hua
- Political aspects 5 ngā hua
- Research 5 ngā hua
- Social conditions 5 ngā hua
- Age distribution (Demography) 4 ngā hua
- Antitrust law 4 ngā hua
- Carbon dioxide mitigation 4 ngā hua
- Econometric models 4 ngā hua
- Emissions trading 4 ngā hua
- Greenhouse effect, Atmospheric 4 ngā hua
- Immigrants 4 ngā hua
- Information technology 4 ngā hua
- Management 4 ngā hua
- Politics and government 4 ngā hua
- Rural development 4 ngā hua
- Technology and state 4 ngā hua
- Trusts, Industrial 4 ngā hua
- Water resources development 4 ngā hua
- Aging 3 ngā hua
- Agricultural development projects 3 ngā hua
- Air 3 ngā hua
- Atmospheric carbon dioxide 3 ngā hua
- Biodiversity conservation 3 ngā hua
- Commercial policy 3 ngā hua
- Costs 3 ngā hua more…