The coastline.
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Answer is Europe environmental solutions must be confined by political borders
<h2>Palmer Peninsula
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Antarctic Peninsula, also called Palmer Peninsula, Graham Land, or Tierra de O'Higgins, peninsula claimed by the United Kingdom, Chile, and Argentina. It forms an 800-mile (1,300-km) northward extension of Antarctica toward the southern tip of South America.
They are close to the equator, another reason is because of the tropical maritime location, temperature changes throughout the region are generally small.