Global Warming - National Geographic

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For 2.5 million years the Earth's climate has fluctuated, cycling from ice ages to warmer periods. But in the last century the planet's temperature has risen unusually fast.
For 2.5 million years the Earth's climate has fluctuated, cycling from ice ages to warmer periods. But in the last century the planet's temperature has risen unusually fast.
+308 -300
Quiz by: InmaCasado
Description: Global warming could do more than just melt polar ice. It could change our maps, and displace people from cities and tropical islands. [3 minutes aprox.]
High Intermediate



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