About 50 million years ago the climate of our planet changed faster than at any other time in our geological record. The period lasted ... but in the Paleocene it was around seven degrees warmer ...

For 40 years now Gingerich has been hunting fossils from the period in the ... labored to document the Paleocene-Eocene transition, most scientists saw it simply as a time when one set of fossils ...

But, well, modeling the orbital evolution of the Solar System over time is tricky ... warmed by more than 5 to 8 °C during the period known as the Paleocene-Eocene Thermal Maximum.