Encyclopedia of Earth
Encyclopedia of Earth: Air Quality in Megacities
Article discusses the impact of air pollution on human health, and surrounding environments, in large urban areas around the world. Compares the levels of smog in the cities of Los Angeles and London, discusses air monitoring programs,...
TeachEngineering
Teach Engineering: Ecology at Work
Students learn how rooftop gardens help the environment and the lives of people, especially in urban areas. They gain an understanding of how plants reduce the urban heat island effect, improve air quality, provide agriculture space,...
TeachEngineering
Teach Engineering: Engineers Speak for the Trees
Students begin by reading Dr. Seuss' "The Lorax" as an example of how overdevelopment can cause long-lasting environmental destruction. Students discuss how to balance the needs of the environment with the needs of human industry....
TeachEngineering
Teach Engineering: What Trickles Down?
Permeability is the degree to which water or other liquids are able to flow through a material. Different substances such as soil, gravel, sand, and asphalt have varying levels of permeability. In this activity, students will explore...