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Nuclear weapons have obviously had a big impact on the world since their development more than 70 years ago. But new research on the diets of small crustaceans in the Mariana Trench--the deepest known point in the world at more than 36,000 feet below sea level--indicates that elevated levels of the radioactive isotope Carbon-14 created by nuclear weapons testing can still be found in these remote, isolated creatures. This week Charlie dives into this interesting research that reveals new insights about the carbon cycles of our oceans as well as the measurable impact of human activities on the environment.

Check out the paper, news articles, and disgusting picture of a Hadal amphipod at www.paperboyspodcast.com.