Biogeosciences
31-Spaceship Earth: Using satellites to feed the world
Chris Justice is a geographer and professor at the University of Maryland whose research on land use changes and global agriculture has taken him around the world.
Read More29-Fire: Lighting the skies with fireflies
Did you ever wonder how random flashes of fireflies gradually acquire synchrony? Studies have shown that this surreal coordination of twinkling occurs through a natural cadence among certain species of fireflies during the mating season.
Read MoreHalloween special: Nessie & the kraken
We’ve all heard stories about fantastical creatures that people swear they’ve seen and have evidence of but can never be confirmed. Think Bigfoot or the Loch Ness monster. Mermaids or the Kraken. While there’s no evidence backing the existence of these creatures, either in present day or at any point in the past, there must…
Read More24.5-A podcast of fire and ice
As the leaves change and temperatures cool, head inside, fire up your headphones, and get ready for hot-podcast fall as share stories about, well, fire. Join us over the next six weeks to hear stories about wildfires, volcanoes, fire in space, and on other planets, indigenous fire knowledge, and…fireflies!
Read More22-Storied careers: Ocean sensors and dog scenters
Tommy Dickey is an emeritus oceanographer from U.C. Santa Barbara and Naval Operations Chair in Ocean Sciences. His modeling and observational research yielded ocean monitoring technologies and tools. For retirement, Tommy trains and deploys Great Pyrenees as therapy dogs, while studying scent dogs’ capacity to detect COVID-19.
Read More21-Storied careers: Scouring seas from the skies
This episode is about how satellite technology is being used to study a big chunk of the earth’s surface. Seventy percent of the earth comprises water but we know very little about it. Color sensors aboard some satellites can actually reveal a lot about phytoplankton or microalgae blooms that are linked to ocean temperatures. These tiny organisms contribute to half the photosynthesis on the planet.
Read More16-Ice: Shells of an ice-less past
Brian Huber is a climate detective at the Smithsonian who grew up collecting arrowheads in the woods of Ohio, but now collects and studies fossils from sediment cores. Brian uses fossils of tiny organisms − foraminifera − to track climate over millions of years, including the Cretaceous Hot Greenhouse climate.
Read More11-Extinctions: Oddballs of the Triassic
Hans Sues is a fossil guy at the Smithsonian. Born in Germany, he has been all over the world finding and interpreting fossils for more than 40 years. His focus is on vertebrates – both in his professional work and his personal attachment to cats.
Read More9-Extinctions: Not your science fair volcano
For many of us, the word “extinctions” conjures up images of dinosaurs, asteroids, and (maybe?) volcanos. And while that last point did likely play a role in the demise of the dinosaurs, volcanos in their own right can go extinct. In this episode, we chatted with volcanologist Janine Krippner, Honorary Research Associate at the University of…
Read More8-Extinctions: The (Maybe) Cambrian (Not Really) Explosion
The Cambrian explosion is commonly labelled as the time in Earth’s history when animals suddenly appear. But research from geoscientist Rachel Wood and her team turns this explanation on its head.
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