The Ocean in Crisis Research Paper Example | Topics and Well Written Essays - 2250 words

The Ocean in Crisis - Research Paper Example In some places like arid desert where fresh water is not readily available, ocean water serves as a lifeline for societies who can decrease its salt content to a safe level. Humanity’s dependence on the oceans is not a recent development, but has existed for thousands of years, ever since man first realized that he could master the resources that the ocean has to offer. Humans are not beyond that basic dependence on regulation and equilibrium in how they interact with the vast oceans of earth. Unfortunately, much of this equilibrium between the health of oceans and the health of civilizations has disappeared in the last century, with the rise of grave threats to the world’s seas. Problems such as acidification, climate change, pollution, and overfishing have resulted in the need for civilizations to rethink how they exploit the oceans to support necessary institutions. Of course, the existence of these threats is not always clear, so the purpose of this paper is to eluc idate some of the inevitable dangers humans pose to the oceans and how those dangers can be reversed. Acidification Acidification is a process of decreasing the pH level of some substance—in this case, earth’s oceans. The process of acidification is occurring at a faster rate because of higher levels of carbon dioxide in the atmosphere. Because levels of carbon dioxide in the earth’s atmosphere remain relatively stable, the excess carbon dioxide is taken up by the oceans (Raven and Falkowski). Dissolved carbon dioxide produces acids such as carbonic acid and bicarbonate. A lower pH has the effect of making ocean waters more acidic, which means most importantly that oceanic calcifying organisms such as corals, crustaceans, echinoderms, mollusks, foraminifera, and others will be vulnerable to the negative effects of a more acidic ocean. Fundamental disruptions to the ecosystems of these organisms that lie at the bottom of the ocean’s food chain will have pr ofound, and most likely irreversible, influences life in the ocean (Nienhuis, Palmer and Harley 10). Keith Sherwood and Craig Idso argue against those who claim ocean acidification poses a significant problem to earth’s largest ecosystem based on a review by Hendriks et al., published in 2010. According to the report, warnings that ocean acidification poses a significant long-term threat to marine biodiversity are based on theoretical models that do not account for numerous biological phenomena and are not supported by empirical observation. According to Sherwood and Idso, biological processes are capable of homeostasis against significant changes in pH levels within the range predicted during the 21st century. However, the essential contradiction here is that the conclusion being offered by Sherwood and Idso is based on the same theoretical models that they claim are not supported by empirical observation earlier; that is, â€Å"the range predicted during the 21st centuryâ €  is a prediction based on a theoretical model of how acid levels in the bulk waters of the oceans will change. A major problem Sherwood and Idso do not address is whether predictions about acid level increases are actually reliable when by their own admission, Sherwood and Idso do not think so. Perhaps acid levels will rise much more than predicted, which would call into the question their conclusion that homeostasis can make up the difference. Climate Change Climate change and ocean acidificati

"United States of Secrets" Or "Long distance Essay

"United States of Secrets" Or "Long distance revolutionary" - Essay Example The public views Mumia Abu-Jamal as a political prisoner as well as a victim of the unethical and unjust American judicial system. The African-American community affirms their long-held belief of Mumia’s innocence in his case associated with the murder of a police officer through the film. Therefore, the film received positive reception from the public, as they believe that the protagonist was a revolutionary who stood for the rights of individuals in the American society. He is thus considered a role model for the society as citizens see him as an incarcerated journalist who represents an international symbol of the product of injustice and nature of capital punishment. The documentary delivers a compelling case of innocence of the murder crime that Abu-Jamal is accused of. Therefore, the story represents the struggles that typify individuals, especially the African-American community, on issues apparent in the judicial system such as lack of substantial evidence to incarcera te a person, evidence tampering, and the withhold of exculpatory facts. I believe that the film Long Distance Revolutionary is an influential political documentary and indictment of the hypocrisy and injustice apparent in the American society. The documentary focuses on controversial issues of injustice and institutional racism that is apparent in numerous institutions such as the judicial system. The documentary focuses on a former Philadelphia Association of Black Journalists’ president and National Public Radio Reporter, who is widely recognized for his unwavering ability to compose publications such as books and articles within the confines of a prison. However, despite his international reputation, many people do not have the understanding about Mumia’s personality, his struggles, and his evolving worldviews. Therefore, the documentary offers an