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Earth on the Rocks

Shelby Rader
Climate Change
Environmental Science
Geochemistry
Geology
Education
Climate Engineering
Stable Isotope Chemistry
Archaeology
Low Temperature Geochemistry
Paleontology
Indiana University
Ivory Trade
Climate History
Sharks
Models
Geoarcheology
Brewing
Paleoenvironments
Beer
Microbiology

Welcome to Earth on the Rocks, a show where we get to know the person behind the science over drinks. Each episode will highlight a new scientist in the earth and atmospheric sciences to learn more about their journey, what interests them, and who they are outside of their science. Host: Shelby Rader Producer: Cari Metz Artwork: Connor Leimgruber Board Operator: Kate Crum, Betsy Leija Funding for ... more

PublishesWeeklyEpisodes31Foundeda year ago
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Earth SciencesScience

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Artwork for Earth on the Rocks

Latest Episodes

On the show today is Ruth Droppo, an artist, graphic designer, and marketing and communications lead for our Earth and Atmospheric Sciences Department. Learn about scientific storytelling through design, Ruth's journey from printmaking and pinhole ph... more

On today's episode of Earth on the Rocks we have Dr. David Polly, a vertebrate paleontologist interested in how past changes (geologically, climatically, environmentally) have affected life and how life may have responded or adapted in turn. Learn ab... more

On the show today is Lorena Jevnikar, a masters student focused on conservation paleobiology through studying coral diversity in the Caribbean. Hear about the Beverly (a drink you need to experience for yourself), how coral populations are declining ... more

Joining the show today is Dr. Doug Edmonds, a sedimentologist interested in how sediment is generated, transported, and deposited and how that may change over time. Hear about sediment's role in human habitation and resource development, whether stat... more

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Recent Guests

David Polly
Doctor, vertebrate paleontologist
Paleontology and academia
Episode: Welcome to the jungle, we've got giant snakes - with Dr. David Polly
Lorena Jevnikar
Conservation paleobiologist studying coral reef diversity in the Caribbean
Indiana University
Episode: Sweet dreams are made of reefs - with Lorena Jevnikar
Doug Edmonds
Doctor, sedimentologist; Earth scientist focusing on depositional environments
Indiana University (implied)
Episode: Islands in the stream (that is what we build) - with Dr. Doug Edmonds
Diya Kamnani
Graduate student in atmospheric science focusing on atmospheric rivers
Indiana University (IU)
Episode: Cry me a(n atmospheric) river - with Diya Kamnani
Ben Kravitz
Climate scientist specializing in climate modeling and geoengineering
Not explicitly stated; discusses Rutgers/STANFORD/PNNL background
Episode: Lucy in the Sky with Aerosols - with Dr. Ben Kravitz
Molly Karnes
Stable isotope ecologist with a focus on sharks.
Episode: All I want for Christmas is my two shark teeth - with Molly Karnes
Janie Wittmer
Graduate student specializing in hydrogeochemistry
Indiana University
Episode: Just add water - with Janie Wittmer
Dr. Danielle Peltier
PhD candidate in the department, recently defended her dissertation
Episode: The defense rests (congratulations Doctor!) - with Dr. Danielle Peltier
Dr. Ginny Gong
Seismologist focusing on earthquake processes
Episode: Sliiiide to the left, sliiiide to the right, earthquake - with Dr. Ginny Gong

Host

Shelby Rader
Host of Earth on the Rocks

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Talking Points

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Lucy in the Sky with Aerosols - with Dr. Ben Kravitz
Q: What role do IPCC reports play in shaping policy discussions about geoengineering?
IPCC reports synthesize peer-reviewed findings, including GeoMIP results, to inform policymakers about potential climate risks and the impacts of different choices, helping societies weigh options in a structured, evidence-based way.
Lucy in the Sky with Aerosols - with Dr. Ben Kravitz
Q: How do you validate climate models when discussing geoengineering, given the uncertain and hypothetical nature of interventions?
We validate using hindcasting, reproducing past events like volcanic eruptions, and by comparing newer model results with older simulations to see whether the fundamental physics and responses remain consistent, which builds trust in the tools.
Lucy in the Sky with Aerosols - with Dr. Ben Kravitz
Q: Can you explain what GeoMIP is and why it was created?
GeoMIP is a coordinated effort among climate modeling centers to run standardized geoengineering experiments so that results can be compared across models, building a community and a coherent set of insights rather than isolated studies.
Lucy in the Sky with Aerosols - with Dr. Ben Kravitz
Q: What are some of the societal choices you study, and how might they be represented in models?
We look at emissions trajectories, policies, and deliberate interventions like sulfur injections or cloud brightening, and we translate those into scenarios to see how global and regional climate variables might respond under different assumptions.
Lucy in the Sky with Aerosols - with Dr. Ben Kravitz
Q: What do you do as a climate scientist, and how would you describe your work to a general audience?
I work primarily with climate models to understand how the Earth system responds to different forcings, including greenhouse gas emissions and potential geoengineering interventions, and I explain that these models are tools to explore possible futures rather than precise predictions.

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Frequently Asked Questions About Earth on the Rocks

What is Earth on the Rocks about and what kind of topics does it cover?

A science-forward show that spotlights researchers in earth and atmospheric sciences through candid conversations over drinks. Episodes feature a mix of established academics, early-career researchers, and graduate students, who share career journeys, fieldwork realities, and the practical tools shaping their work—from paleontology and sedimentology to geochemistry and climate modeling. Listeners can expect engaging storytelling, hands-on science details, and personal anecdotes that reveal what motivates scientists beyond their papers, along with discussions of current environmental challenges, tech-enabled research, and the societal implications of their findings. A standout quality is the approachable, drink-theory vibe that pairs rigorou... more

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1. The Weekly Show with Jon Stewart

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Earth on the Rocks launched a year ago and published 31 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

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What guests have appeared on Earth on the Rocks?

Recent guests on Earth on the Rocks include:

1. David Polly
2. Lorena Jevnikar
3. Doug Edmonds
4. Diya Kamnani
5. Ben Kravitz
6. Molly Karnes
7. Janie Wittmer
8. Dr. Danielle Peltier

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