Tuesday, October 29, 2019
Formal Outline Essay Example for Free
Formal Outline Essay INTRODUCTION Attention material: The world stopped getting warmer almost 16 years ago, according to new data released last week. The figures, which have triggered debate among climate scientists, reveal that from the beginning of 1997 until August 2012, there was no discernible rise in aggregate global temperatures. This means that the plateau or pause in global warming has now lasted for about the same time as the previous period when temperatures rose, 1980 to 1996. Before that, temperatures had been stable or declining for about 40 years. Credibility material: The current cycle of global warming is changing the rhythms of climate that all living things have come to rely upon. What will we do to slow this warming? How will we cope with the changes weve already set into motion? While we struggle to figure it all out, the face of the Earth, as we know itÃ¢â¬âcoasts, forests, farms, and snowcapped mountainsÃ¢â¬âhangs in the balance. Thesis statement: Today I want to share what IÃ¢â¬â¢ve learned about global warming and itÃ¢â¬â¢s causes. Preview: We need to consider causes, effects and dangers of global warming. (Transition: Lets begin by understanding more about global warming.) BODY I. The Earth is warming and human activity is the primary cause. A. U.S. scientists said in the media January 19, 2012, about the influence of mankind on the state of global warming has increased from 18% to 51%. B. The primary way humans cause global warming is by burning fossil fuels. 1. When we drive or fly. 2. When we eat meat and Exotic Foods. 3. When we use electricity. 4. When You Move Into A New Development. (Transition: Now, from this it becomes clear why humans are the main cause of global warming, letÃ¢â¬â¢s examine its major effects) II. Global Warming effect information. A. The planet is warming, from North Pole to South Pole, and everywhere in between. Globally, the mercury is already up more than 1 degree Fahrenheit (0.8 degree Celsius), and even more in sensitive polar regions. B. Some impacts from increasing temperatures are already happening. 1. Ice is melting worldwide, especially at the EarthÃ¢â¬â¢s poles. This includes mountain glaciers, ice sheets covering West Antarctica and Greenland, and Arctic sea ice. 2. Researcher Bill Fraser has tracked the decline of the AdÃ ©lie penguins on Antarctica, where their numbers have fallen from 32,000 breeding pairs to 11,000 in 30 years. 3. Sea level rise became faster over the last century. 4. Some butterflies, foxes, and alpine plants have moved farther north or to higher, cooler areas. 5. Precipitation (rain and snowfall) has increased across the globe, on average. 6. Spruce bark beetles have boomed in Alaska thanks to 20 years of warm summers. The insects have chewed up 4 million acres of spruce trees. C. Other effects could happen later this century, if warming continues. 1. Sea levels are expected to rise between 7 and 23 inches (18 and 59 centimeters) by the end of the century, and continued melting at the poles could add between 4 and 8 inches (10 to 20 centimeters). 2. Floods and droughts will become more common. Rainfall in Ethiopia, where droughts are already common, could decline by 10 percent over the next 50 years. (Transition: So now, we know about global warming effects, lets see our futureÃ¢â¬ ¦and how we can fix it!?) III. Predicted Effects and Impacts of Global Warming. A. Future effects about global warming. 1. Increased spread of infectious diseases: an increase in the number of people exposed to vector borne diseases (e.g. cholera) and an increase in heat stress mortality. 2. Degraded water quality: Projected climate change will tend to degrade water quality through higher water temperatures and increased pollutant load from runoff and overflows of waste facilities. 3. More frequent and more intense heat waves, droughts, and tropical cyclones. B. Some basic predictions of global warming. 1. Global mean temperature should increase by between 1.4 and 5.8 C (2.5 to 10 F). 2. The sea level should rise by between 9 and 88 cm (3.5 to 35). (Transition: Finally, I want to tell you about the solution of this huge problem.) IV. Solutions to Global Warming. A. There is no single solution to global warming. 1. Boosting energy efficiency. 2. Greening transportation. 3. Revving up renewables 4. Phasing out fossil fuel electricityManaging forests and agriculture 5.Exploring nuclear 6.Developing and deploying new low-carbon and zero-carbon technologies. 7. Ensuring sustainable development CONCLUSION Summary statement: Some impactsÃ¢â¬âsuch as record high temperatures, melting glaciers, and severe flooding and droughtsÃ¢â¬âare already becoming increasingly common across the country and around the world. However, there is much we can do to protect the health and economic well-being of current and future generations from the consequences of the heat-trapping emissions caused when we burn coal, oil, and gas to generate electricity, drive our cars, and fuel our businesses. Concluding remarks: Since 1880 the world has warmed by 0.75 degrees Celsius.