PBS and HBO Examine Global Warming, Dimming of the Sun and Vanishing Species

The global temperature is rising. As the poles become warmer, the domain of birds and insects is expanding. As humans take up — or mess up — more terrain, the habitat of large predators is shrinking. NY Times

Nova: Dimming Sun
Tuesday, April 18, 8:00pmThe discovery that the sunlight reaching Earth is dimming.

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