Researchers focused on the climate of the Pliocene, over 3 million years ago, the last time Earth has seen concentrations of over 400 PPM CO2 in the atmosphere, similar to today's concentrations. The ...

As temperatures around the world continue to rise because of global warming, a team of researchers are looking for environmental clues from millions of years in the past to predict what the ...

Year-round ice-free conditions across the surface of the Arctic Ocean could explain why the Earth was substantially warmer during the Pliocene Epoch than it is today, despite similar concentrations of ...

For researchers seeking to understand the effects of climate change on the weather of the North American Southwest, the answer lies in traveling millions of years back in time on wings of wax—leaf wax ...

In 2009, studies of deep sediment layers from a largely unknown, unexplored lake in the tundra of Russia’s eastern Arctic released a flood of new evidence about what global warming had done to the ...

The Pliocene epoch, which lasted from 5.3 million to 2.6 million years ago, was a consequential time in Earth's history. The ...