The Lost Forests of America

White fir trees died in in a 2002 drought in the Santa Rosa Mountains, while neighboring Jeffrey pines survived at this elevation. Climate changes is raising temperatures and lengthening dry spells in the region. Credit: University of California, Irvine

From Live Science:

You could plant any old tree to celebrate Arbor Day April 24. But consider instead a sugar maple, or another of the native trees that once abounded in this country.

The forests that once dominated this nation were full of trees such as chestnuts, hemlocks and white pines on the East Coast and conifers such as redwoods and Douglas firs on the West Coast.

Around the arrival of Columbus, "it's said that squirrels could travel from tree to tree from the Northeast to the Mississippi without ever having to touch the ground," said Chris Roddick, chief arborist at the Brooklyn Botanic Garden in New York. "In the old growth forests in the Northeast, you had hemlock that were six or seven feet in diameter, chestnut trees 200 feet tall."

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