Nokero just introduced the solar light bulb. The bulb uses 200 times less energy than a kerosene lamp and provides five times as much light.

It is made from impact-resistant plastic, four solar panels, a replaceable rechargeable battery and five light-emitting diodes (LEDs). It is about the size of a standard light bulb and can withstand [...]

A new study by non-profit Environment and Human Health, Inc, “LEED Certification: Where Energy Efficiency Collides with Human Health,” pinpoints weaknesses in the certification, and so recommends that LEED certification be measured separately in different categories.
According to the study, the way LEED certification measures adverse health impacts of building materials gives a false impression of [...]