Unintended Consequences

> **After Allied forces dusted civilians in Naples with DDT in 1944 to halt a typhus epidemic, the same persistent chemical that saved lives from insect-borne disease began thinning the eggshells of bald eagles and peregrine falcons across North America and Europe by the late 1950s.** ### Segment 1 — The Hook In the winter of 1943–1944, U.S. ... AI Disclosure: This podcast is curated by Patrick bu...

> **In 1921 Thomas Midgley Jr. added tetraethyl lead to gasoline to silence engine knock, never imagining the additive would raise blood-lead levels in entire generations and measurably lower cognitive performance worldwide.** ### Segment 1 — The Hook Thomas Midgley Jr. was working in a Dayton, Ohio laboratory on December 9, 1921 when he first demonstrated that a few drops of tetraethyl lead in a...

# Unintended Consequences — Episode Brief **Topic:** Cane Toads in Australia > **In 1935, Australia brought 102 cane toads from Hawaii to battle sugarcane beetles — but the toads bred into the billions and killed native predators instead.** ### Segment 1 — The Hook In the summer of 1935, staff at the Meringa Sugar Experiment Station near Gordonvale in northern Queensland opened crates containing 1...

> **Delhi's British government paid for dead cobras to cut snake numbers, but the bounty led to breeding, and scrapping it released more snakes into the city.** ### Segment 1 — The Hook In the narrow lanes and crowded markets of colonial Delhi, where cobras regularly entered homes and shops, British administrators set up payment stations and began handing out cash for every dead snake turned in. ....