Nitrogen isotopes within samples of bat excrement accurately reflect modern precipitation patterns. So could guano serve as a paleoclimate record?
JoAnna Wendel
JoAnna Wendel is a freelance science writer and cartoonist. She covers topics ranging from the geology of faraway moons to the behavior of animals in our oceans. She served as a staff writer for Eos from 2014 to 2018, then worked in communications in NASA’s Planetary Sciences Division. JoAnna is now freelancing full time as a writer and artist.
Posted inNews
Rise in Tornado Numbers per Outbreak May Not Be Tied to Warming
Scientists studying why previous research revealed a steadily increasing number of tornadoes in the United States per outbreak find an unexpected result.
Posted inAGU News
Journal of Geophysical Research: Planets Celebrates 25 Years
Two editors look at the past, present, and future of the American Geophysical Union's planetary science journal.
Posted inNews
First of Next Generation of U.S. Weather Satellites Hits the Sky
The novel spacecraft and three sister satellites to follow are expected to vastly improve storm forecasting.
Posted inNews
Cores from Crater Tied to Dinosaur Demise Validate Impact Theory
Drilling into the famous, deeply buried Chicxulub crater off Mexico, researchers found deformed and porous granite that opens new avenues of research.
Posted inNews
Scientists Offer New Explanation for Island's Unexpected Uplift
Researchers developed a new timeline for the rise, fall, and rise again of a puzzling island in the Azores.
Posted inNews
Whiskers on Familiar Crystal Revealed as New Mineral
A 14-year-old girl's chance encounter with a random sample of tanzanite led scientists to find an entirely new mineral.
Posted inNews
Ant Populations Destabilize Under Warming
In forest experiments in which artificial warming mimicked future climate conditions, heat-tolerant ants thrived, leaving other populations unstable.
Posted inNews
Cracking Comet: A Window to the Past
An unusual feature on comet 67P/Churyumov-Gerasimenko offers insights into cometary origins.
Posted inFeatures
Thirteen Ghoulish Place-Names Across the Globe
Feeling devilish this Halloween? Open a map.