The Sixth Extinction: An Unnatural History

Graham, Russell
graptolites
Adelograptus divergens
Dicranograptus ziczac
grasses, invasive
grasslands
great auk (Pinguinus impennis)
Great Barrier Reef
Green, Ed
Griffith, Edgardo
Grotte des Combarelles
Guam
Gubbio limestone
Guettard, Jean-Étienne
guillemots
Gulf of Mexico sediment cores
Guðmundsson, Guðmundur
hadrosaurs
Hallam, Anthony
Hall-Spencer, Jason
Hamish, Cyclone
Hawaii
H-bomb tests
Hepting, George
Heron Island
Hesperornithine birds
Hicks, Al
Himalayas
hippopotamus
pygmy
History of Animals (Aristotle)
hobbits (Homo floresiensis)
Hoegh-Guldberg, Ove
Holdaway, Richard
Holocene epoch
Homo erectus
Homo heidelbergensis