Solar Innovation through Simplicity

I came across this little video and couldn't get over the impact such a simple DIY project using scrap metal, an old bottle, and some water could have on such a large number of people. I know this seems like nothing; it's probably insignificant to most people, but innovation doesn't need to be expensive and sexy. The highly effective and functional "bottle in a roof" seems to be catching on in the Philippines and has potential to impact many other areas around the world facing similar issues. Sometimes I can't get enough of social entrepreneurship.

Here is a neat NPR article with more info.

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