The Week in Pictures: International Day of Climate Action, Green Halloween, and More (Slideshow)

A lot happened this week in green: from readers in the Hollywood Hills to our writers in Times Square, the International Day of Climate Action brought global awareness for climate change; we found out Chinese fruit bats demonstrate unusual sexual behavior--never before seen in adult animals--discovered a lamp that works only with a drop of blood, and rounded up five tips for a greener Halloween. Find out what else happened in the world of green this week in our photo roundup of most popular, most important, and most oddball stories. And if you missed it, view last week's The Week in Pictures: Elephants Extinct by 2025, Great Pacific Garbage Patch, Green Home Improvement, and More (Slideshow).

More Week in Pictures
The Week in Pictures: Elephants Extinct by 2025, Great Pacific Garbage Patch, Green Home Improvement, and More (Slideshow)
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The Week in Pictures: Zombie Attacks, Sockeye Salmon Disappear, Fiji Water, and More
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