Quotes About Geologic

As scientists have discovered - or perhaps explained is a better word, or perhaps identified - we now live in the age of the Anthropocene. The geologic age of the Anthropocene. Those high priests of material evidence have given us our own epoch like the Holocene, the Pleistocene! Apparently we now, it seems, have superhuman powers.

background extinction." In ordinary times—times here understood to mean whole geologic epochs—extinction takes place only very rarely, more rarely even than speciation, and it occurs at what's known as the background extinction rate. This rate varies from one group of organisms to another; often it's expressed in terms of extinctions per million species-years.

Thomas Crowley and Gerald North, oceanographers at Texas A&M University, describe the melting of the great ice-sheets at the end of the last Ice Age as 'one of the most rapid and extreme examples of climate change recorded in the geologic record'.

With our evolved busy hands and our evolved busy brains, in an extraordinarily short period of time we've managed to alter the earth with such geologic-forcing effects that we ourselves are forces of nature. Climate change, ocean acidification, the sixth mass extinction of species.

Civilization exists by geologic consent, subject to change without notice.

It draws its name from rocks that are characteristic of the Permian geologic age, which ended with the "great extinction" that wiped out most living creatures about 250 million years ago.

Looking back in time was very exciting to me. But looking forward is more challenging—nothing unfolds as you anticipate, and it's the small things, not the huge geologic shifts, that make or break you.