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UNCG BIO 105 - Continuation of Important Legislation

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BIO 105 1st Edition Lecture 9Past LectureConcept: Triple Bottom Line – 1. Dollar value (human economy cost will always be important. 2. Human cost or benefit (Society) 3. Cost or benefit to the natural world (environment)Work Ethic: an extension of development ethic. It has value regardless of the outcome. We workto better ourselves. One negative of the work ethic is that the money ($) might be the only interest for humans.Rachel Carson: (1950-60’s) Wrote Silent Spring, which was published in 1962. The book challenged the use of pesticides. It highlighted dangers about the use of pesticides and illuminated the dark side of science. New technologies just lead to new chemicals. The book also initiated discussion about nature and environment, and warned society about pesticides overuse. DDT was a chemical that was used to control insects. DDT was sprayed all over people properties and public beaches. The chemical would eventually accumulate in the water, and the passed along through the food chain. Once the chemical is in the bodies it stays there. Bioaccumulation- The process by which a contaminant accumulates in the tissues of an organism. The absorption and concentration of toxic chemicals in living organisms. Heavy metals and pesticides, such as DDT, are stored in the fatty tissues of animals and passed along to predators of those animals. The result is higher and higher concentrations of the pesticide in fatty tissue, eventually reaching harmful levels in predators at the top of the food chain, such as eagles. Also called biomagnification**Environmentalism has built dramatically over the past couple century. In April 1970, the first Earth Day was celebrated. Twenty million people participated.Thomas Berry (late 20th –early 21st century): He believed the universe (all of nature) is sacred, a mean of knowing the Devine. Reestablish lost intimacy with the natural world (this is how our inner lives are enriched). The magnitude of current events is not recognized and the profound change in human consciousness. It’s more than just recycling. Cultural Autism: Humans are daydreaming; they are focusing on themselves and not the world around us. These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.By 1970’s scientists were confident that global warming was a risk of burning fossil fuels, but efficiently decreased in the following decades. For decades, carbon emissions have increased per person even knowing the risk. “The universe has important and special role to play”Important LegislationThe Lacy Act- First wildlife law and states that it is a federal offense to move poached special across state boundariesPittman Roberson Act- (1937) 11% tax on arm and ammunitions. It establishes funds for restoring wildlife and used primary for game species and habitat. Current LectureContinuation of Important LegislationNational Environmental Policy Act (NEPA) – Passed in 1969 and state that any project that spends federal money must access the impact it has on the environment and must make this assessment known to public. “No sneaky.” Must also write an Environment Impact Statement (EIS). The EIS can be critiqued and there is a public hearing for the project. For example, new road work, airports, seaports. Environment Protection Act (EPA) – passed in 1970 with the help of President Richard Nixon.Endangered Species Act (ESA) – Passed in 1973. Protect two categories, endangered and threatened. For example, gray wolf, sea turtle, red wolf.Nature of ScienceTheory - 1) casual/use: popular guess. It is an assumption without evident. (A hunch) Conjure; opinion or imperfect fact. It’s “just a theory” which makes is easily dismissed as having little credibility. 2) Scientific Theory: consists of a combination of basic premises or assumptions that function together to explain a set of related phenomena. It is testable and provides a frameworkfor making sense of observations. (Refutable)Scientific TheoryTentative :Idea, testable, but not rigorously tested. Contains some evidence, but not conclusive. It has support from science investigation and may be competing with other theories what also are supported with evidence. E.g. global warming due to anthropogenic activity was tentative in the 1960’sEmbedded: accepted and rigorously tested with strong support with no viable competing theories. It’s very high probable. For example, germ theory of disease transmission, cell theory (structure of


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