Related by context. Frequent words. (Click for all words.) 49 melting glaciers 48 floods droughts 46 climate change 45 mountain glaciers 44 melting permafrost 44 global warming 44 oceans 44 ecosystems 43 melting polar 43 warming 43 Global warming 43 glacial lakes 43 ocean ecosystems 42 subtropics 42 livelihoods 41 heatwaves 41 melting ice 41 droughts floods 41 Droughts 41 marine ecosystems 41 coastlines 41 aridity 40 greenhouse gas concentrations 40 World Meteorological Organisation 40 coral reefs 40 climate 40 droughts 40 ocean acidification 40 coastal ecosystems 39 greenhouse warming 39 Himalayan glaciers 39 latitudes 39 aquatic ecosystems 39 heat trapping carbon dioxide 39 tropics 39 arid regions 38 seas 38 Melting ice 38 Coral reefs 38 tropical forests 38 atmospheric concentrations 38 Tibetan Plateau 38 carbon sinks 38 tropical rainforests 38 glaciers 38 polar regions 38 degree centigrade 38 atmospheric carbon dioxide 37 fragile ecosystems 37 ozone depletion 37 melting Arctic 37 greenhouse gases 37 Greenhouse gases 37 atmospheric CO2 37 Amazon rainforest 37 glacial ice 37 temperatures 37 snowpacks 37 Greenland ice 37 World Meteorological Organization 37 WMO 37 crop yields 37 anthropogenic 37 rivers 37 acidification 37 Climate 37 imperiling 37 burning fossil fuels 37 temperate regions 36 planet 36 marine biodiversity 36 rainforests 36 Environment Programme UNEP 36 forest ecosystems 36 desertification 36 degree Celsius 36 Environment Programme 36 anthropogenic global warming 36 protective ozone layer 36 coral bleaching 36 Urbanization 36 sea 36 polar bear habitat 36 deforestation 35 meltwater 35 journal Geophysical Research 35 atmospheric circulation 35 Xie Zhenhua 35 greenhouse gasses 35 businesses expanding Norl 35 UNEP Executive 35 subsistence farmers 35 ocean 35 heat trapping gases 35 marine ecosystem 35 ozone layer 35 peat bogs 35 permafrost 35 overexploitation 35 polar bear populations 35 salinity