On the Air: August 28, 2016

Giant icebergs in the Southern Ocean appear to be leaving much more than melted ice in their wakes. They’re providing a bounty of nutrients that feed “blooms” of microscopic organisms. And those organisms could help slow the rise in Earth’s temperature.

An iceberg forms when a glacier pushes out to sea and part of it breaks off. The bottom of the iceberg holds bits of nutrient-rich rock and dirt gouged out as the glacier scraped across land.

In Print: August 1, 2016

Nearly all of the world’s seven sea turtle species are facing a high risk of extinction, in part because of illegal trade of their eggs and shells. Yet scientists still know very little about the lives of these turtles, making it difficult to accurately track their populations and choose successful conservation strategies. One of the most basic tools marine biologists lacked was a way to calculate a turtle’s age — until now. The solution has been right in front of them the whole time, on the backs of the turtles themselves.