Related by context. Frequent words. (Click for all words.) 55 depopulation 53 landlessness 50 Urbanization 47 prolonged drought 47 impoverishment 47 outmigration 46 frequent droughts 46 Droughts 46 ecological degradation 46 Severe drought 46 prolonged droughts 46 urbanization 46 pastoralism 45 environmental degradation 45 overhunting 45 underdevelopment 45 Urban sprawl 45 Feral hogs 45 overpopulation 44 overgrazing 44 droughts 44 Overpopulation 44 habitat fragmentation 44 nutritional deficiency 44 insecurity 44 Illiteracy 43 fatherlessness 43 rapid urbanization 43 Drought 43 habitat degradation 43 monocultures 43 fragmentation 43 aridity 43 scarcity 43 urban sprawl 43 Endemic 43 Cholera outbreak 43 dustbowl 43 suburbanization 43 inward migration 43 drought 43 irrigated agriculture 42 barrenness 42 deindustrialization 42 desertification 42 Dust Bowl 42 deer herds 42 stagnation 42 scarcities 42 malnutrition 42 populations 42 winterkill 42 industrialism 42 famines 42 overgrazed 41 Joblessness 41 alienation 41 Birth defects 41 locust plague 41 marginalization 41 predation 41 semi arid 41 depredation 41 ghettoization 41 biodiversity 41 irrigated crops 40 Irish potato famine 40 Colonialism 40 Populations 40 species extinctions 40 worklessness 40 harsh winters 40 genetic diversity 40 fertile soils 40 milder winters 40 agrarian 40 inequality 40 drylands 40 blights 40 poverty 40 monoculture 40 fertile farmland 40 starvation 40 Dryness 40 soil erosion 40 Malnutrition 40 epidemics 40 shortages 40 floods droughts 40 backwardness 39 decimation 39 Bovine TB 39 Fragmentation 39 farming 39 migration 39 deforestation 39 rapid industrialization 39 balkanization 39 croplands 39 subsistence farming 39 malnourishment