In today's Good News, scientists use AI to develop a paint formula able to cool off buildings — a potential game changer for cities that routinely see sizzling temperatures. And at the Minnesota Zoo, a mare finds a way to channel her grief into something positive as she helps raise a rare Przewalski's horse rejected by his mom.

Catherine Garcia
The Week Digital

Weight-loss drugs containing GLP-1s, like Wegovy and Mounjaro, reduce the risk of 42 health conditions in people with diabetes, including dementia and infections, according to a study published in Nature Medicine. Researchers from Washington University in St. Louis made the discoveries while analyzing the records of more than 1.4 million diabetic patients. The team, puzzled by the reduced risk of infections, has called for further trials of the medications to confirm their broader potential.

More than 2,000 native plants are thriving under the care of a 20-woman-strong gardening team at the Gurukula Botanical Sanctuary in Kerala, India. This is one of the "world's hottest hot spots of biodiversity," said The Guardian, and in the last four decades, the sanctuary has grown from 7 acres to 79. Deforestation and climate change threaten the region, but Gurukula stands out as a "Noah's Ark for endangered plant species," including different types of rare impatiens and ferns.

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Following the death of her newborn foal, a mare at the Minnesota Zoo named Alice has embraced Marat, a rare Przewalski's horse. Marat developed bacterial sepsis shortly after birth and was rejected by his mother, but Alice stepped in to help. They quickly bonded, and Alice has already taught Marat how to act in a herd of horses. It was "really kind of a perfect fairy-tale ending," Dr. Annie Rivas, the zoo's director of animal health, told The Associated Press.

AI-designed paint could help cool down cities, slash energy bills and ease the urban heat island effect, according to researchers. Scientists from China, Singapore, Sweden and the U.S. have used machine learning to develop a new formula able to keep buildings at least 41 degrees Fahrenheit cooler than standard paint. In hot cities like Bangkok, coating 1,000 apartment roofs with this paint could save enough electricity to power 10,000 air conditioners for a year.

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