Add Yahoo as a preferred source to see more of our stories on Google. River full of debris Getty Images/panaramka Earth's 4.5 billion year geological history is full of death and rebirth, mass ...

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An international group of researchers is working to define a new geological era that will more accurately describe the current state of the planet. Called the Anthropocene era, this geological unit ...

Earth's 4.5 billion year geological history is full of death and rebirth, mass extinctions and explosions of biodiversity, with different periods often marked by cataclysmic changes that radically ...