Related by context. Frequent words. (Click for all words.) 73 Climate Change IPCC 72 Climate Change 58 IPCC 56 climate change 55 Global Warming 53 Climate 53 World Meteorological Organisation 52 Pachauri 52 Copenhagen Climate 50 Intergovernmental Panel 50 Climate Change UNFCCC 49 Environment Programme 49 global warming 49 UNEP 48 UN Intergovernmental Panel 48 UNFCCC 48 Greenhouse Gases 48 Environment Programme UNEP 47 Biodiversity 47 Sustainable Development 46 World Meteorological Organization 45 WMO 45 greenhouse gases 44 Rajendra Pachauri 44 Disaster Reduction 44 Carbon Dioxide 44 Desertification 43 Climate Change Secretariat 43 Environment 43 Global warming 43 Greenhouse Gas 43 floods droughts 43 Lomborg 43 Himalayan glaciers 43 George Monbiot 43 greenhouse gas concentrations 42 greenhouse gas emissions 42 Deforestation 42 Agriculture Organisation 42 Climate Action 42 carbon emission 42 ocean acidification 41 greenhouse gas 41 Greenhouse Gas Emissions 41 climatologists 41 carbon emissions 41 greenhouse gas emission 41 CLIMATE 41 IUCN 40 COP# [001] 40 Agriculture Organization FAO 40 greenhouse emissions 40 atmospheric carbon dioxide 40 Monbiot 40 Worldwatch Institute 40 Greenhouse gases 40 GHGs 40 carbon dioxide emissions 40 Connie Hedegaard 40 Agriculture Organization 40 Climategate 40 Copenhagen Accord 40 climate 39 marine ecosystems 39 UN 39 reducing carbon emissions 39 United Nations 39 Low Carbon 39 Disaster Risk Reduction 39 NIWA 39 Achim Steiner 39 ICCAT 39 emission reduction 39 mountain glaciers 38 anthropogenic 38 greenhouse gas GHG emissions 38 greenhouse gasses 38 Yvo de Boer 38 geoengineering 38 Garnaut 38 CO2 emissions 38 atmospheric CO2 38 biodiversity 38 combating global warming 38 WWF 38 gigatons 38 Copenhagen 38 IPY 38 Emissions 38 ozone depletion 38 journal Geophysical Research 38 Agriculture Organisation FAO 38 emissions 38 carbon dioxide emission 38 FoE 38 melting glaciers 38 Major Economies Forum 38 Carbon dioxide emissions 37 Montreal Protocol 37 #.#C [002] 37 journal Nature Geoscience