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Be Smart
Recycling Is Broken. Here’s How We Can Fix It.
Recycling is broken. Here's how we can fix it.
What’s In a 20,000 Year-Old Cube of Ice?
Join Joe Hanson as he explores curiosity and illuminates the science behind… well, everything.
What’s In a 20,000 Year-Old Cube of Ice?
Season 7 Episode 22 | 11m 20s | CC
Earth’s climate is changing in a big way, and it’s because there's more carbon dioxide in the atmosphere than at any point in our species’ history. But Earth’s climate has changed before. How do we know that this time we’re the cause? We know thanks to tiny bubbles of ancient atmosphere trapped in ice.
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