A new study reveals how plants have evolved to cope with the cold, but as VOA’s Rosanne Skirble reports, these same mechanisms may not provide the same defense against human-induced climate change in a rapidly warming world.
Studimi i evolucionit të Tokës

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Newly emerged tulip poplar leaves in spring after winter frost at Joyce Kilmer Memorial Forest, Robbinsville, North Carolina. (Amy Zanne)