Alternative Energy, ed. 2 cover Animal cover Cat cover Climate Change cover Encyclopedia of Environmental Ethics and Philosophy cover Environmental Encyclopedia, ed. 4 cover Environmental Science: In Context cover Environmental Science Experiments cover Grzimeks Animal Life Encyclopedia: Evolution cover Grzimeks Animal Life Encyclopedia: Extinction cover UXL Encyclopedia of Biomes, ed. 2 cover UXL Encyclopedia of Water Science cover UXL Encyclopedia of Weather and Natural Disasters, ed. 2 cover UXL Encyclopedia of Weather and Natural Disasters cover UXL Endangered Species, ed. 3 cover UXL Sustainable Living cover Worldmark Encyclopedia of U.S. and Canadian Environmental Issues cover