Submarine hobbyists are helping scientists in Montana do environmental research on the state's lakes. Researchers couldn't otherwise afford to rent subs, and it gives the hobbyists a sense of purpose.
David Greene talks with science writer Peter Brannen about fires in the Amazon and across central Africa, and about what people get wrong when we talk about the Earth's forests burning.
Deforestation rates in Brazil's Amazon are soaring under a far-right president who wants to exploit the forest's resources, including the Amazon River. A huge dam has brought in much development.
Forecasters warn, "Dorian is anticipated to remain an extremely dangerous major hurricane ... into next week. Florida and Georgia have declared emergencies along the wide possible path of the storm.
NPR's Noel King talks with Erik Milito of the American Petroleum Institute about the Trump administration's proposal to roll back Obama-era regulations on methane, a powerful greenhouse gas.