Richard Heinberg writes at the Earth Island Journal:
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Time to celebrate! Woo-hoo! It’s official: we humans have started a new geological epoch – the Anthropocene. Who’d have thought that just one species among millions might be capable of such an amazing accomplishment?
Let’s wait to stock up on party favors, though. After all, the Anthropocene could be rather bleak. The reason our epoch has acquired a new name is that future geologists will be able to spot a fundamental discontinuity in the rock strata that document our little slice of time in Earth’s multi-billion year pageant. This discontinuity will be traceable to the results of human presence. Think climate change, ocean acidification, and mass extinction.
Welcome to the Anthropocene: A world that may feature little in the way of multi-cellular ocean life other than jellyfish, and one whose continents might be dominated by a few generalist species able to quickly occupy new and temporary niches as habitats degrade (rats, crows, and cockroaches come to mind).