The Week in Pictures: First Plug-in Hybrid Electric Porsche Unveiled, Best Picture of Earth Ever, PETA Porn, and More (Slideshow)

From the news that state legislators in South Dakota have passed a resolution that "urges" schools to stop teaching global climate change as hard science--and instead pair it with "astrological" and "cosmological" theories--to the unveiling of the 918 Spyder, a new plug-in electric hybrid Porsche concept car from Volkswagen, a lot happened this week in green. 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.

WHAT'S HOT ON FACEBOOK

treehugger slideshows