WITH 1.6 BILLION PEOPLE LIVING OFF THE GRID, the financial and environmental costs pile up quickly. Residents of the world’s poorest nations sometimes spend a third of their income on kerosene, a fuel that poisons lungs and poses a fire hazard; a kerosene lantern emits 550 pounds of carbon dioxide every year. Battery-powered lights are an option, but could result in mountains of tiny cylinders of toxic waste. Inexpensive devices that harness the sun and wind can supply small amounts of power, come from local materials, and create local jobs. The developing world’s population is expected to grow by 2.5 billion over the next 40 years, so these innovative energy savers can’t come soon enough.
Source: http://sustainabledesignupdate.com/
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