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Chlorophyll

(credit: Mark/ viewer submitted)

Good Question: Why Are So Many Leaves Left On The Trees?

According to Ken Hollman of the Minn. Department of Natural Resources, the Twin Cities area is between 50-75% for peak falls colors. “I’d say we’re a week or two behind,” Hollman said. He says our later fall colors don’t have much to do with the late spring, but rather the drought we’ve experienced across much of the state for the past two years. “Trees depend on water and nutrients in the ground that they take up their roots to build and create the chlorophyll and other chemicals that contain the colors,” he said.

10/31/2013

(credit: CBS)

Good Question ‘Reply All’: Leaf Colors, Sirens & Tin Foil

We’ve all seen the beautiful leaves out there. But how exactly do they change colors? That’s just one of the Good Questions you e-mailed us this week. Now back to leaves…

10/11/2013

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