Ecospot grand prize winner: Sky is Falling

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I like this public service announcement because it addresses an elusive concept that's been on my mind for some time now: carbon emissions. I've read several examples of saving X tons of carbon saved for driving less, using energy-efficient appliances, and so on. But what the heck does a "ton of carbon" mean? What does it look like, smell like, feel like? There's no visceral experience related to that abstract concept. (At least, I've not fathomed it.) So that's why I like this PSA because it provides us a concrete metaphor (i.e., elephants) to raise awareness on climate change. I think this guy is on to something...I like it very much!