Christopher Joyce Christopher Joyce is a correspondent on the science desk at NPR. His stories can be heard on all of NPR's news programs, including NPR's Morning Edition, All Things Considered, and Weekend Edition.
Potential annual damages are shown on the county-level in a scenario in which emissions of greenhouse gasses continue at current rates. Negative damages indicate economic benefits. Hsiang, Kopp, Jina, Rising, et al./Science hide caption
An international team of scientists believes it has solved the mystery of how eggs got their shapes. Frans Lanting/Mint Images RM/Getty Images hide caption
Max Planck Institute paleoanthropologist Jean-Jacques Hublin examines the new finds at Jebel Irhoud, in Morocco. The eye orbits of a crushed human skull more than 300,000 years old are visible just beyond his fingertip. Shannon McPherron/Nature hide caption
315,000-Year-Old Fossils From Morocco Could Be Earliest Recorded Homo Sapiens
What Are The Ramifications Of The U.S. Leaving The Climate Accord?
Morning News Brief: U.S. Pulls Out Of International Climate Accord
President Trump Decides To Pull U.S. Out Of Paris Climate Agreement
UMCES chemist Michael Gonsior gathers water samples from Cocktown Creek in Maryland. Andrew Heyes/Courtesy of University of Maryland Center for Environmental Science hide caption
Trump's Budget Would Eliminate A Key Funder Of Research On Coastal Pollution
Cars line up at the south entrance to Zion National Park in Utah, bringing with them the urban soundscape. Education Images/UIG via Getty Images hide caption
Coal is piled up at the Gallatin Fossil Plant in Gallatin, Tenn. Mark Humphrey/AP hide caption
Environmentalists, Coal Companies Rally Around Technology To Clean Up Coal
(Left) A close-up view of a spirally fractured mastodon femur. (Right) A boulder discovered at the Cerutti Mastodon site in San Diego County thought to have been used by early humans as a hammerstone. Tom Démeré/San Diego Natural History Museum hide caption
New Evidence Suggests Humans Arrived In The Americas Far Earlier Than Thought
Native westslope cutthroat trout swim in the north fork of the Flathead River in northwestern Montana. However, cutthroat trout populations are threatened by hybridization from mating with rainbow trout. Jonny Armstrong/USGS hide caption
NET Power has built carbon capture technology into its power plant outside Houston, which will generate electricity by burning natural gas. The demonstration project should be fully operational later this year, according to NET Power. Courtesy of NET Power hide caption