Related by context. Frequent words. (Click for all words.) 68 ecological footprint 66 carbon footprints 60 carbon footprint 52 carbon emissions 50 CO2 emissions 49 greenhouse gas emissions 47 carbon dioxide emissions 47 GHG emissions 46 planet 45 biodiversity 45 environmental impacts 45 greenhouse emissions 44 climate change 44 greenhouse gasses 43 carbon emission 43 oceans 43 greenhouse gases 43 emissions 43 fossil fuels 43 ecosystems 42 reducing carbon emissions 42 biosphere 42 reduce carbon emissions 42 atmospheric carbon dioxide 41 dietary habits 41 deforestation 41 CO2 41 global warming 41 externalities 41 environmental degradation 41 calorie intake 41 lifestyles 41 footprint 40 carbon 40 tropical forests 40 environmental sustainability 40 CO2 emission 40 impacts 39 eating habits 39 consumption 39 glaciers 39 fossil fuel 39 landmass 39 carbon dioxide 39 dietary intake 39 sustainability 38 ecological 38 pollution 38 exhaust emissions 38 sodium intake 38 sustainably 38 greenhouse gas emission 38 rainforests 37 Earth 37 crop yields 37 footprints 37 earth 37 greenhouse gas 37 arable land 37 salt intake 37 ecology 37 ecologically 37 habitats 37 soil fertility 37 diets 37 marine ecosystems 37 bio diversity 36 urbanization 36 Amazon rainforest 36 tropical forest 36 extinctions 36 air pollution 36 surroundings 36 journeys 36 GHG 36 inequality 36 planting trees 36 caloric intake 36 outgoings 36 life expectancies 35 rainforest 35 industrialized 35 urban sprawl 35 carbon sequestration 35 vastness 35 topography 35 rapid urbanization 35 Footprint 35 environmental 35 carbon dioxide CO2 35 inequalities 35 usage 35 Environment Programme 35 tailpipe emissions 35 genetic makeup 35 life expectancy 35 Industrial Revolution 35 per capita 34 interconnectedness 34 waistlines 34 Greenland ice