A new passive cooling system relies on evaporation and radiation and requires no electricity. The device can provide up to about 19 degrees Fahrenheit (9.3 degrees Celsius) of cooling from the ambient ...

Scientists from the United Kingdom’s University of Nottingham and China’s Southwest Jiaotong University have developed a novel hydronic closed-loop PV cooling system for hot and arid regions. “We ...

Global warming? While the tree- huggers clamor over ex-Vice President Gore's global temperature scare, we'll lay odds that when summer arrives, car crafters will be more concerned about engine warming ...