Sometimes making the parts necessary for green technologies can have dire effects on human wellbeing. The cobalt used in lithium-ion batteries in Africa's Democratic Republic of the Congo (DRC) is a good example. Researchers led by…

Automakers are anxious to see results from their thermoelectricity research, as 60% of fuel efficiency is lost due to waste heat. While the energy from waste heat generated from cars and computers can be captured and turned into…