Related by context. Frequent words. (Click for all words.) 48 moon Europa 46 else e.returnValue = 44 admiral asks 44 Saturn moon Enceladus 44 Polar Regions 44 AP Interview CG 44 equatorial regions 43 upwellings 43 icecaps 43 Weddell Sea 43 polar caps 42 polar icecaps 42 Meridiani 42 seabeds 42 habitable zones 42 Martian equator 41 lunar poles 41 Lake Vostok 41 Oort Cloud 41 Saturn moon 41 Arctic 41 Dry Valleys 41 equatorial Pacific Ocean 41 astrobiologists 41 plankton blooms 41 Arctic Ocean 41 polar regions 41 Arrests indicate 40 methane hydrates 40 polar 40 polar vortex 40 northern latitudes 40 arctic 40 Lomonosov Ridge 40 -# degrees Fahrenheit [002] 40 Brrrr 40 Martian surface 40 polar ice 39 greenhouse warming 39 subarctic 39 Higgs particle 39 NASA Cassini spacecraft 39 Red Planet 39 Letters faxes 39 Previous usernames 39 Arctic permafrost 39 Melting glaciers 39 warmer wetter 38 Martian arctic 38 ice melts 38 Beluga whales 38 fabled Northwest Passage 38 Martian rocks 38 glacial melting 38 equatorial 38 Antarctica 38 hydrothermal vent 38 arctic tundra 38 climate alarmists 38 interglacial period 38 continental shelf 38 anthropogenic global warming 38 southernmost continent 37 Robert Peary 37 floes 37 Arctic Circle 37 Martian landscape 37 icebound 37 mid latitudes 37 latitudes 37 ESA Mars 37 martian 37 Siberian permafrost 37 solar corona 37 solar nebula 37 Oceanographers 37 volcanic vents 37 Medieval Warm Period 37 Martian 37 tidal waters 37 undersea plumes 37 Sea otters 37 Permafrost 37 manmade global warming 36 waters 36 Atlantic Ocean 36 equator 36 Antarctic Peninsula 36 intertidal zone 36 geoid 36 Antarctic waters 36 icy crust 36 paleoclimate 36 Antarctic 36 tropics 36 frigid temps 36 easterlies 36 frigid 36 oceanic 36 Arctic tundra 36 continental crust