Related by context. Frequent words. (Click for all words.) 55 Heckenberger 53 Bonnicksen 53 biogeochemist 53 paleobiologist 52 Fearnside 52 Guldberg 52 microbial ecology 51 Varki 51 Robock 51 vom Saal 50 plant physiologist 50 Ken Caldeira 49 forest ecologist 49 Willerslev 49 postdoctoral researcher 49 Crutzen 49 NCAR scientist 49 Pielke 49 Epel 48 Diffenbaugh 48 Beschta 48 mongabay.com 48 Umea University 48 Kaspari 48 Melosh 48 Wageningen University 48 Poinar 48 Fierer 48 Zachos 48 Lunine 47 CIFOR 47 Idso 47 Chory 47 Niels Bohr Institute 47 Umeå University 47 Sociobiology 47 ecologist 47 CIRES 47 PNAS 47 computational biologist 47 Ecology Letters 46 atmospheric chemistry 46 Pääbo 46 studys 46 Romesberg 46 Sinervo 46 Tinetti 46 nitrogen fixation 46 Olken 45 Alivisatos 45 Rignot 45 Nature Geoscience 45 Paul Crutzen 45 terrestrial ecosystems 45 Wurtman 45 paleoanthropologist 45 Nepstad 45 biogeography 45 ecologists 44 Smol 44 PNAS paper 44 CIRAD 44 Eric Rignot 44 coevolution 44 evolutionary biologists 44 Helmholtz Centre 44 atmospheric physicist 44 biological oceanographer 44 postdoctoral fellow 44 Hertz Picciotto 44 HHMI investigator 44 Chameides 44 nitrogen deposition 44 geomorphology 44 forest ecosystems 44 atmospheric chemist 44 Sahlgrenska Academy 44 Del Genio 43 neurobiologists 43 Plant Physiology 43 hydrologic cycle 43 evolutionary biologist 43 Geschwind 43 geoscientist 43 Vinther 43 Rahmstorf 43 ecology 43 systematics 43 Giovannucci 43 Niyogi 43 researcher 43 Yakobson 43 agroecology 43 Trenberth 43 Pruetz 43 Damasio 43 Biogeography 43 atmospheric CO2 concentrations 43 Dettinger 43 Kendler 42 Darwinius