Half of All Species Are on the Move—And We’re Feeling It
A recent federal study found that spring is arriving as many as 20 days early in the southwestern United States—and even as far north as the New York Botanical Garden, where this tree blooms.
But as temperatures warmed with fossil fuel emissions, and growing seasons lengthened, the shrubs multiplied and prospered. Today many stand over six feet.
Bigger shrubs drew moose, which rarely crossed the Brooks Range before the 20th century. Now these spindly-legged beasts lumber along Arctic river corridors, wherever the vegetation is tall enough to poke through the deep snow. They were followed by snowshoe hares, which also browse on shrubs.
Today moose and hares have become part…
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