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Anna Reoh marks a tiny oak with a bright blue twist tie. In the fall, workers will install a tube over the tree to protect it from browsing deer. In future years, researchers will measure the seedling’s growth. Credit: MPR Photo/Stephanie Hemphill

Northern Minnesota tree plantings anticipate a warming climate

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By Stephanie Hemphill / Minnesota Public Radio

Superior National Forest -- A few miles from Lake Superior, near the Caribou Trail, members of a tree-planting crew seem to hit rock wherever they aim their long-bladed hoedads.

"We're just trying to find soil in between all these nice rocks, where the roots of these little oak trees are going to be able to grow down and survive," crew leader Kira Reoh said.

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