For the Arctic ice melt to make sense, all you have to do is watch this YouTube video, from the National Oceanic and Atmospheric Administration, which shows the puny extent of sea ice in 2012 compared with the historical average.

CNN: Don't feed the (polar) bears

The half-hour video, now viewed 40 million times, sets viewers up for a message so gratifying and fulfilling that it is almost impossible to resist: there is a terrible problem in the world, you are the solution, and all you have to do is pass along this video.

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Now suppose you want to do more than just have a video chat with 10, 000 of your closest friends.

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Otherwise, you'll have to make do with the demo video after the break.

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Do you believe current scientific studies have conclusively proven a causal link between video games and aggression in children?

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You could go there and do it, but we have a video.

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So telling our children, you have to turn off the TV, stop playing the video games, do your homework, aspiring to excellence in education -- that's the issue that probably we have to work on.

WHITEHOUSE: Open for Questions with President Obama

If you've already paid for a video clip once you don't have to pay for it again, but you do have to stream it all over again, which is almost as bad.

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