Getty Images North America
Ask a Scientist
Our monthly ‘Ask a Scientist’ column answers questions that come from UCS members and supporters.
Getty Images North America
Grant Baldwin/Getty Images
SolStock/Getty Images
Joe Raedle/Getty Images
USDA
Joe Raedle/Getty Images
Mitchell Johnson/Unsplash
Alan Stark/Wikimedia Commons
Daily Hampshire Gazette
Lynn Betts/USDA NRCS
Kindel Media/Pexels
photofunia.com
General Motors
Mark Stebnicki/Pexels
US Navy
NBC News Studios
Olivier Lantzendorffer/iStock.com
Sienna Falzetta/BLM
Dennis Schroeder/NREL
Dennis Schroeder/NREL
Esri/OpenStreetMap
Wikimedia Commons/ The Council of the Federation of the Federal Assembly of the Russian Federation
Video still by @damiengayle
Dave Center/Flickr