Greg Barnes

👤 Speaker

24 total appearances

Appearances Over Time

NPR News: 01-28-2026 8PM EST

Geologist Greg Barnes knows these minerals well.

NPR News: 01-28-2026 8PM EST

I just couldn't believe that something of this size and quality was there sitting out there.

NPR News: 01-28-2026 8PM EST

On the indicator from Planet Money, is this really a land of untapped natural riches?

NPR News: 01-28-2026 8PM EST

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