The Sixth Extinction is widely regarded as essential reading on the ecological crisis, with authors across disciplines treating it as a foundational reference. David Wallace-Wells builds on Kolbert's documentation to show how climate change accelerates biodiversity loss, while Kate Crawford connects its extinction narrative to the environmental costs of AI and mineral extraction.
Suzanne Simard and Helen Macdonald each draw on Kolbert's work to ground their own explorations of vanishing ecosystems and species. Readers praise the book for making the scale of human-driven extinction viscerally real without resorting to dry statistics, though some note it can feel relentlessly bleak with limited discussion of solutions -- a gap Kolbert herself later addressed in a follow-up book.