In recent weeks we have talked about waste-to-energy plants that burn waste and use the resulting heat to produce electricity. The problem, however, is that this process also produces toxic emissions. One Bill Gates-backed startup by the name of Sierra Energy has a better … [Read more...] about This startup vaporizes trash and turns it into new products—without emissions
Bill Gates
Why Bill Gates is betting big on reinventing the toilet
Bill Gates believes that reinventing the toilet can not only save half a million lives, but it can also save $200 billion-plus annually in costs linked to diarrhea and other diseases caused by poor sanitation. Gates is so convinced that his foundation has already spent $200 … [Read more...] about Why Bill Gates is betting big on reinventing the toilet