Defects And Contamination Control
Dr. Michael Watts gives a brief review of the Cosmos episode, The Clean Room, which touches on recent semiconductor history.
Decreasing Our Environmental Impact Through Biofuel Energy
Advances in biofuel engineering help decrease our environmental impact and increase our alternative energy alternatives.
Termite Mound Technology May Improve Energy Consumption

Decreasing environmental impact by applying termite mound technology in structural engineering
Engineering Energy: Solar
Mechanical engineers work on solar energy design using CAD and FEA as tools to relieve environmental impacts.