Drones Reach Stratospheric Heights in Race to Fly Higher, Longer - The Wall Street Journal
Drones Reach Stratospheric Heights in Race to Fly Higher, Longer - WSJ
Updated July 14, 2023 12:48 am ET
This month a drone took off from a missile range in New Mexico and climbed into the stratosphere, joining a race to deliver unmanned aerial vehicles that can fly higher and longer than ever before.
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What began as a theory in the 1890s — that industrial emissions of carbon dioxide could increase global temperatures — had progressed to a scientific fact a century later. Scientists across a range of disciplines are studying the impact of the still-growing concentration of carbon dioxide and other so-called “greenhouse gases” in the atmosphere as they call for industrial and governmental policies to slow, then halt, the warming of the planet.