How the tick-tock of a plant's clock could help fight the effects of global warming

Scientists can learn a lot by hacking a plant's internal timepiece

Everybody hates Day Light Savings time. In just one night, your body is expected to course-correct against the schedule it's kept for the last six months. On Monday, every cell in your body will wake up screaming, "It's not time yet!"

But humans aren't the only ones that are jarred when their Circadian rhythms are disrupted. Plants, too, live by a finely tuned time-keeping system. For instance, many produce protective sunscreen molecules just before dawn. Seed production and flowering are triggered similarly, a mechanism rooted in the amount of daylight plants detect.

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Jason Bittel serves up science for picky eaters on his website, BittelMeThis.com. He writes frequently for Slate and OnEarth. And he's probably suffering from poison ivy as you read this.