Understanding the human body is a team effort. That's where the Yachtel group comes in.

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years. Yacold also

partners with nature portfolio to advance gut microbiome science through the global grants for

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That's y-A-K-U-L-T dot-C-O-J-P.

When it comes to a guide for your gut, count on YacL.

This is Scientific American's 60-second science.

I'm Suzanne Bard.

Near the end of the 18th century, the Industrial Revolution began to transform Great Britain.

Machines replaced hand tools, factories sprouted up in cities and towns, and a sharp uptick in coal combustion polluted the skies.

The industrial revolution and the pollution that followed in its wake soon spread to the rest

of Europe.

But some of the smoke and ash didn't stay there.

It also drifted into the upper atmosphere and was blown by winter winds all the way to the

frigid Himalayas.

This ash was transported for thousands of kilometers, and eventually it was deposited with the

snowflakes.

Environmental scientist Paolo Gabrieli of the Ohio State University, his team found signatures

of airborne pollution from the beginning of the

Industrial Revolution in Tibet. Specifically, in ice cores taken from a glacier nearly 24,000 feet

above sea level, on Mount Shishipagma. Such ice cores are like time capsules that contain a record

of the contaminants that were mixed in with each year's

...