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Welcome to Science Sessions, the PNAS podcast program. Listen to brief conversations with cutting-edge researchers, Academy members, and policymakers as they discuss topics relevant to today's scientific community. Learn the behind-the-scenes story of work published in PNAS, plus a broad range of scientific news about discoveries that affect the world around us. Please scroll down for recent podcasts.

Dec 13, 2021

A collection of research articles explores how tropical ecosystems have borne the brunt of the human impact on the environment. Image credit: Pixabay/Pexels.