Greg Barnes
speaker
24 appearances
4 recordings
1 series
first heard Jan 2026
last heard 5 Feb
Greg Barnes’s voice in public audio — every appearance, attributed to the second.
Trend
recordings per month · last 12 monthsRecordings per month over the last 12 months — 4 in all, peaking in Feb 2026 with 2.
Appearances
Geologist Greg Barnes knows these minerals well.
I just couldn't believe that something of this size and quality was there sitting out there.
On the indicator from Planet Money, is this really a land of untapped natural riches?
Listen on the NPR app or wherever you get your podcasts.
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