In 2023, Marlena Arjo adopted a one-eyed kitten with a penchant for destruction. She named him Otto, and over the next eight months, Otto grew into his own little chaotic personality.

“ He’s laying on houseplants, he’s tearing books out of the bookshelves, ripping the calendar off the wall…I wasn’t prepared for having a criminal in my home,” Arjo joked.

Within months, Otto got sick and stopped eating. Arjo rushed him to a vet and learned he had feline infectious peritonitis, better known as FIP, a disease that kills nearly all cats that contract it.

The vet said there was nothing the clinic could do. But there was something Arjo could do.

“I shouldn’t tell you this,” Arjo recalled the vet telling her. “But by the way, you can get drugs for this if you go to this Facebook group.”

This week on Reveal, in partnership with the Hyperfixed podcast, we tell the story of the cat drug black market, why it was even necessary, and how cat lovers fought for big changes to make the black market obsolete.

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More To The Story: Bill McKibben isn’t known for his rosy outlook on climate change. Back in 1989, the environmentalist wrote The End of Nature, which is considered the first mainstream book warning of global warming’s potential effects on the planet. His writing on climate change has been described as “dark realism.” But McKibben has recently let a little light shine through thanks to the dramatic growth of renewable energy, particularly solar power. In his latest book, Here Comes the Sun: A Last Chance for the Climate and a Fresh Chance for Civilization, McKibben argues that the planet is experiencing the fastest energy transition in history from fossil fuels to solar and wind—and that transition could be the start of something big. On this week’s More To The Story, McKibben sits down with host Al Letson to examine the rise of solar power, how China is leapfrogging the United States in renewable energy use, and the real reason the Trump administration is trying to kill solar and wind projects around the country.

Producer: Josh Sanburn | Editor: Kara McGuirk-Allison | Theme music: Fernando Arruda and Jim Briggs | Copy editor: Nikki Frick with help from Digital producer: Artis Curiskis | Deputy executive producer: Taki Telonidis | Executive producer: Brett Myers | Executive editor: James West | Host: Al Letson

Listen: Will the National Parks Survive Trump? (Reveal)

Read: Rooftop Solar Is a Miracle. Why Are We Killing It With Red Tape? (Mother Jones)

Read: Here Comes the Sun: A Last Chance for the Climate and a Fresh Chance for Civilization (W.W. Norton & Company)

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This week on Reveal, we celebrate our 10-year anniversary with a look back at some of our favorite stories, from investigations into water shortages in drought-prone California to labor abuses in the Dominican Republic. And we interview the journalists behind the reporting to explain what happened after the stories aired.

This is a rebroadcast of an episode that originally aired in March 2025.