"Underwater noise from ships has gotten louder, reshaping marine ecosystems and the lives of animals that depend on sounds to eat, mate, and navigate. Can ships ever pipe down?"

"The bird flu outbreak in U.S. dairy cows is prompting development of new, next-generation mRNA vaccines — akin to COVID-19 shots — that are being tested in both animals and people."

"David Hom suffered from diabetes and felt nauseated before he went out to hang his laundry in 108-degree weather, another day in Arizona’s record-smashing, unrelenting July heat wave. His family found the 73-year-old lying on the ground, his lower body burned. Hom died at the hospital, his core body temperature at 107 degrees."

"Humanity is ramping up the risk of global health disasters by intruding deep into the world’s bat habitats, breeding grounds for deadly viruses. In this five-part series, Reuters pinpoints the places where the next outbreaks are likeliest."

"Catastrophic flooding in southern Brazil has forced hundreds of thousands of people from their homes. Many say they won’t go back."

"Inspired by school-strike leader Greta Thunberg, 20-something eco-warriors - with campaigns launched from Paris to Prague - are swapping banners for ballots in their war on climate change."