Ok, I really had no intention of a third post in 24 hours...but this was so cool I wanted people to see it asap.
On Google+ Joanne Manaster posted this link:
Un litre de lumière
That short post is in French, but you won't need to know the details when you see the video. Which is in Tagalog--but subtitled.
Video -
Un litre de lumiere
@BoraZ, who some of you will know from the science blogging community, added more details with a link to this post (in English).
Lighting up the Philippines – one liter at a time
The program, Isang Litrong Liwanag (A Liter of Light), installs water-filled soda bottles through a cutout in a roof. Chlorine is added to the water to prevent clouding, and the bottle is sealed to prevent a leaking roof. Once it’s all done the refracted light is powerful enough to brighten up a home.
The program's page has some more information, and a Reuter's report on the project (also in English) for your further illumination. It is reducing their electric bills while improving their quality of life.
Isang Litron Liwanag
I mean, I know this is cool for the Philippines--but if I even had a small structure at this point I would absolutely make this part of my plan.
A small item, otherwise disposed of, making a major difference in people's lives. I can use some good news for a change.
Sorry if this is a duplicate, it was my first exposure to the project. And I wasn't reading extensively here of late...