Caption
A US infantryman releases a Neros Archer small unmanned aircraft system for a test flight at Fort Irwin in California on October 25, 2025. (US Army)
Environment
Environment
Caption
A doctor performs an ultrasound on a pregnant woman in Sukadana, Indonesia, Aug. 3, 2016.
Caption
Not much traffic on Radial Leste Avenue in São Paulo, Brazil, April 21.
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A group of cows rest in a cattle farm on March 07, 2009 in Lujan, Argentina. (Ricardo Ceppi/Getty Images)
Caption
(U.S. Air Force Photo by Staff Sgt. Robert M. Trujillo)
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The Impossible Burger 2.0, the new version of the company's plant-based vegan burger that tastes like real beef is introduced at a press event during CES 2019 in Las Vegas on January 7, 2019. (ROBYN BECK/Getty Images)
Experts
Brigham A. McCown
Senior Fellow and Director, Initiative on American Energy Security
