In the Cold War 1960s, a quiet marine biologist became the target of a multimillion-dollar corporate smear campaign, complete with lawsuit threats and accusations of communist sympathies. Her offense was asking the public to think critically about the synthetic chemicals being sprayed from airplanes.

This episode follows Rachel Carson from a nature-loving child in Pennsylvania to a bestselling author who wrote Silent Spring while secretly battling terminal cancer. We explore how her government editing career trained her to translate dense science for the public and how she exposed the dangers of DDT and bioaccumulation.

• Abandoning her doctorate during the Depression to support her family
• How her Bureau of Fisheries work became the ultimate training ground
• The concept of bioaccumulation and how DDT thinned eagle egg shells
• Hiding her illness so the industry could not dismiss her as hysterical
• The Streisand effect, the 1963 TV special, and the birth of the EPA