Just another Reality-based bubble in the foam of the multiverse.

Saturday, June 04, 2011

like the K-T layer

Welcome to the Anthropocene.

...The geological signal will be clear from industrial-scale mining, damming, deforestation and agriculture, as well as the concentration of carbon in the atmosphere and nitrates in the oceans. Even the presence of the first human-produced chemicals like PCBs, radioactive fallout and the humble plastic bag could be measured millions of years hence.

...There have been seven epochs since the dinosaurs died out around 65m years ago. The last time we passed a geological boundary, entering the Holocene around 12,000 years ago at the end of the last ice age, we were an insignificant species, just one of a couple of hominids struggling to survive in a world where so many of our cousins, like Homo erectus, had failed to make it.

Now our effect on the climate and our fellow species is having a global impact. "The fossil record will reveal a massive loss of plant and animal species, and also the scale of invasive species – how we've distributed animals and plants across the globe..."

No comments: