Ken Caldeira

Dec. 14, 2007

Coral in Crisis

The world's coral reefs are in great danger, threatened by climate change. We'll hear about new forecasts for the future of the world's coral.

coral, oceans, reefs, coral reefs

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Michael Pollan Talks Plants and Food

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Baby, It's Cold Outside

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Snowflake Safari

\tWinter weather means more than sledding and snowmen. Next snowstorm, grab a magnifying glass and try snowflake hunting. Bullet rosettes, stellar plates, and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Kenneth Libbrecht, physicist at Caltech and snowflake expert, shares secrets of the snowflake.

\tVideo originally published on ScienceFriday.com on December 31, 2009

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