“When the dinosaurs go extinct and 75 percent of life goes extinct after a meteor hits the planet, that's an era boundary. That's when we change from the Mesozoic to the Cenozoic.” PlanetsPercentBoundariesErasDinosaursMeteors Author:Kenneth Lacovara
“If we want to know how the Earth's biosphere is going to respond to the things that humans are doing to the planet right now, the only evidence that we have is how biotic systems have responded in the past.” IfsKnowsWantHumansEarthPastKnow HowPlanetsRight NowEvidenceBiosphere Author:Kenneth Lacovara
“The Anthropocene essentially would be the time of human influence on the planet. That's controversial though, because geology is a retrospective discipline. The rocks of the Anthropocene haven't been deposited yet, really.” HumansWould BeInfluenceRocksHavensPlanetsDisciplineControversialGeologyRetrospective Author:Kenneth Lacovara
“Certainly, we have entered into a new age on our planet.” AgePlanetsNew AgeOur Planet Author:Kenneth Lacovara
“There's no doubt if you could go 5, 10, 15 million years into the future and dig down to 2016, you would be able to find the geological evidence that humans occupied the planet.” IfsYearsHumansWould BeAbleMillionsDoubtPlanetsEvidenceNo Doubt Author:Kenneth Lacovara