From the 35-mile long volcanic rift in the Ethiopian desert that has been confirmed as the beginning of a new sea to the news that oil continues to gush into the Timor Sea–at an estimated rate of somewhere between 400 and 2,000 barrels per day–from an oil rig off the NW coast of Australia, a lot happened this week in green. We took a tour of

Paris Hilton’s $325,000 dog mansion–complete with air-conditioning and designer furniture–and saw spooky photos of Readers’ Green Halloweens. 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.

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The Week in Pictures: Oil Rigs on Fire, Paris Hilton’s Doghouse, Mount Kilimanjaro, and More (Slideshow)