Holmes Hummel, a Stanford PhD and Congressional Science Fellow for Rep. Jay Inslee, has put together two PowerPoint presentations, one brief, one longer. She says: "These overview pieces are for The Curious & Concerned, a growing number of people who understand the importance of a federal climate policy but are confused by the framework of the current proposals."

The slideshows explain cap-and-trade legislation through an analogy with musical chairs, which turns out to work bizarrely well. It’s worth spreading around.

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I’ve taken the liberty of using a service called SlideShare to convert the presentations into Flash and embed them here. (If you want to see full-screen versions, click over to the Slideshare site; if you want to see animation effects, watch the original PPTs.)

Here’s the short introduction:

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And here’s the full presentation: