Unit Title	Author
2020
Malaria	William McGeehan
Keywords: adaptation, biomagnification, disease, DNA, Ecology, Evolution, Flexibility and adaptability, genetics, Natural Selection, parasite, population genetics
2019
Freshwater Ecology in Philadelphia	Elizabeth Szablya
Keywords: Ecology, freshwater, Physical Science, Schuylkill River, Wissahickon Creek
2011
Hydraulic Fracturing in the Marcellus Shale: Boon or bust?	Galeet Cohen
Keywords: Ecology, energy, Gasland, geology, marcellus shale, natural gas, Sunoco refinery, water quality
2006
The Disappearance of Sherwood Forest: The History of Cobbs Creek in Philadelphia	Patricia Blakeney-Whack
Keywords: Cobbs Creek Parkway, Ecology, Environmental Science, pollution, Preserving the Environment, Watershed, West Philadelphia
Go Green for a Better Tomorrow	Marie P. Clarke
Keywords: changemakers, Ecology, incinerators, landfill, pollution, recycle, reduce, reuse, solutions, trash