Nuclear bombs set off new geological epoch in the 1950s, scientists say
Plutonium-239 rained down from the atmosphere and settled in sediments across the planet. (Image credit: Galerie Bilderwelt/Getty Images)Nuclear weapons testing in the 1950s and early 1960s left the first obvious and indelible marks of "overwhelming" human activity on Earth, and these events may signal the beginning of a new geological…
bubmagJuly 14, 2023