Related by context. Frequent words. (Click for all words.) 57 catastrophe 55 ecological 51 humanitarian catastrophe 50 calamity 49 devastation 46 cataclysm 46 oil spill 45 disaster 44 destruction 44 environmental degradation 43 catastrophic 43 tragedy 43 inundation 43 ecology 43 spill 43 rapid industrialization 42 apocalypse 42 toxic sludge 42 climate change 42 mass extinction 42 extinction 42 catastrophes 41 fragile ecosystem 41 desertification 41 Ecological 41 pollution 41 epidemic 41 anthropogenic 40 disasters 40 global warming 40 biosphere 40 coastal erosion 40 conflagration 40 Global warming 40 alarmism 40 forest fires 40 Exxon Valdez spill 40 ecologists 40 acid rain 40 biodiversity 40 environmental 39 consequences 39 Chernobyl 39 Aral Sea 39 floods droughts 39 calamities 39 epidemics 39 cataclysmic 39 acidification 39 bird flu epidemic 39 catastrophic consequences 39 destructions 39 infernos 38 civilization 38 ecosystems 38 barbarism 38 apocalyptic 38 fragile ecosystems 38 inferno 38 spillage 38 coastal wetlands 38 Global Warming 38 extinctions 38 depopulation 38 urbanization 38 mass extinctions 38 floods 37 flash floods 37 polluted 37 coral bleaching 37 submergence 37 criminal negligence 37 environmentalist 37 ecologically 37 polluter 37 crisis 37 Exxon Valdez disaster 37 Deepwater Horizon disaster 37 destructiveness 37 peat bogs 37 holocaust 37 destabilization 37 train wreck 37 humanitarian crises 37 bio diversity 37 Urbanization 37 ruination 36 marine ecosystem 36 silting 36 prolonged drought 36 rig exploded 36 mangrove forests 36 ocean acidification 36 overdevelopment 36 genocide 36 irreversible 36 manmade disasters 36 deforestation 36 incalculable 36 Chornobyl 36 Khabarovsk