Part of the proceeds from the methane sales will go toward rehabilitating the drug-infested slums, or favelas, that have sprung up around the landfill.
CNN: Landfill's closure changing lives in Rio
2.
The encouraging story of Singapore is how this tiny nation-state transformed itself from a drug-infested, decrepit former Brit colony into a world-class economy in only 40 years.
FORBES: Slinging It From Singapore
3.
Studies in Australia, Brazil and the United States suggest that animals in half or more of farms in many parts of those countries are infested with drug-resistant worms.
ECONOMIST: Parasitology: The risks of global worming | The