Global Environmental Change

Section 1. Describe an important figure in the environmental history of the U.S.  David Brower was an important figure in the environmental history of the U.S. The reason David Brower was so persuasive about thinking of the environment in the U.S was because of his need to preserve the environment for his generation, and for others. This can be seen in one of his famous quotes, “Let the mountains talk, let the river run. Once more, and forever.” Bower created this environmental movement that the United States needed at the time and has had a long list of impacts since. The man truly did everything.The first organization we learn Bower became executive producer of was the Sierra Club from the documentary A Fierce Green Fire. Bower promoted awareness by expressing conservation issues to society through newspapers, radios, etc. He also founded Friends of the Earth and Earth Island Institute. By being a part of our owning these organizations he helped influence and develop areas su...

Section 1. The endangered species. The Vaquita is a mammal that belongs to the Phocoena genus also known as porpoise. The scientific name for the species is Phocoena Sinus. The animal looks like a small gray or dark gray dolphin with dark circles around the eyes. According to the article, What's the difference between dolphins and porpoise, National Oceanic and Atmospheric Administration U.S. Department of Commerce states that dolphins and porpoises differ in their faces, fins, and body shapes. Porpoise physical characteristics are a triangular dorsal fin, no beaks, smaller flippers, and whale teeth. Rojas-Bracho has been studying the decline of Vaquita and summarizes his findings in an assessment on the IUCN red list . From this website I learned a lot about the animals in terms of where there found, their diet, where they fall on the food chain, and their predators. The species travels individually or in groups up to ten but don't migrate long distances. They are found ...