While clean energy sources are gradually becoming more affordable, wind turbines and solar panels are still prohibitively expensive for much of the world’s poor. To fill the demand for cheap, alternative energy, a number of do-it-yourself innovations that cost next to nothing have popped up across the globe. They require little technical expertise to use, … Read more Clean, Cheap Energy
Since 1992, the Brazilian city of Cubatão has been a poster child for environmental responsibility. The United Nations even designated it as a global example of environmental recovery. But that title was won at a heavy cost. Less than a decade earlier, Cubatão, a city of 130,000 inhabitants in the state of São Paulo, was … Read more Private Sector: Savage or Savior?