Related by context. Frequent words. (Click for all words.) 48 Ken Caldeira 48 Amazon 48 Worldwatch 44 biodiversity hotspot 44 carbon sequestration 44 forest ecologist 42 deforestation 42 forest ecosystems 42 carbon sinks 42 glacial melt 41 species extinctions 41 conserve biodiversity 41 tropical forests 41 avoided deforestation 41 glacier melt 41 INPE 40 Biochar 40 biofuel crops 40 sequestering carbon 40 FAPRI 40 Deforestation 40 Agroforestry 40 drylands 40 Lomborg 40 Ecotrust 40 tropical forest 40 agroforestry 40 gigatonnes 40 Research Institute IFPRI 40 habitat fragmentation 39 Ausubel 39 Bjorn Lomborg 39 ocean fertilization 39 Amazon Rainforest 39 Ecosystem Marketplace 39 Unep 39 sequester carbon 39 TEEB 39 Combat Desertification 39 glacial melting 39 amphibian populations 39 mountain glaciers 39 ocean acidity 39 Ecological Footprint 39 Skeptical Environmentalist 38 nutrient runoff 38 Agricultural Organization FAO 38 crop yields 38 Rainforests 38 forests 38 tropical deforestation 38 Environment Programme 38 bioenergy crops 38 Cerrado 38 lowland forests 38 terrestrial ecosystems 38 glacial retreat 38 Copenhagen Consensus 38 forest dwellers 38 REDD 38 Amazonian 38 evapotranspiration 38 Geoengineering 38 Trucost 38 biodiversity hotspots 38 glacier melting 38 greenhouse warming 38 ecosystems 37 dieback 37 afforestation 37 Amazon rainforest 37 James Lovelock 37 biodiversity 37 UNEP 37 subtropical regions 37 Environment Facility GEF 37 CO2 concentrations 37 atmospheric methane 37 greenhouse gases GHG 37 desertification 37 worsening droughts 37 biodiverse 37 Carbon Dioxide 37 hydrological cycle 37 river deltas 37 Mongabay 37 climate change 37 ozone depletion 37 Climate 37 Agricultural Organisation FAO 37 frequent droughts 37 Achim Steiner 37 Sucharita Mulpuru 37 Amazonia 37 coral reef ecosystems 37 anthropogenic climate 36 nitrogen fixation 36 UNCCD 36 melting permafrost 36 Nature Conservancy 36 boreal