A 60-million year old fossil palm leaf from Alaska. A new study by researchers including Isabel Montañez at UC Davis has produced the most accurate chart to date of how Earth's temperature has changed ...

The new paper is part of an ongoing research effort that began in 2018, when Smithsonian researchers were helping develop the museum’s “David H. Koch Hall of Fossils— Deep Time.” The new hall aimed to ...

Global temperature records go back less than two centuries. But that doesn’t mean we have no idea what the world was doing before we started building thermometers. There are various things—tree rings, ...

A team of researchers says oxygen isotopes found in rock types contain the oldest geochemical record of the Earth. A collective understanding of five different data sets show that, all the way back to ...

Editor's note: This report was published on Jan. 1. In early January, data was released further confirming that 2023 was Earth's hottest year on record. It's a moment scientists have warned about for ...

A view of one part of the Paleontology collection in the Museum of Natural History, arranged by the addition of representative specimens from other parts of the three floors of fossils in the East ...

A new study co-led by the Smithsonian and the University of Arizona offers the most detailed glimpse yet of how Earth’s surface temperature has changed over the past 485 million years. In a paper ...