The Impact Of Global Warming On The Earth - 900 Words

Title: The Impact of Global Warming Purpose Statement: To inform my audience about how global warming is impacting the earth. Central Idea: Data shows that all throughout history, the temperature of our planet has changed over and over again for natural reasons. Holli Riebeek, education and outreach specialist at NASA, stated that these changes are due to small shifts in the Earth’s orbit and the Sun’s energy levels varying throughout time. Today, unfortunately, with the average temperature of the earth rising more than 1.1 to 1.6 degrees Fahrenheit since between 1906 and 2005 according to Riebeek, Earth’s climate is being endlessly changed by something called the greenhouse effect. The planet’s animals, our weather, and our future is in†¦show more content†¦i. This causes heavy precipitation to occur, resulting in massive floods. ii. Devastating and stronger tropical storms and hurricanes are also becoming more common along coastal regions as ocean temperatures, air temperatures, and water levels rise. b. Fires have always been a healthy part of the ecosystem, according to scientists. i. With more extreme dry conditions in some parts of the world, there is much higher chance of severe wildfires occurring. 1. Complete devastation of huge areas of land. c. The article Global Warming and Extreme Weather from the National Wildlife Federation stated that these extreme wildfires are a massive threat to wildlife. i. Animals that are living in an area impacted by a wildfire have a small chance of escaping. II. Ecosystem a. Many aquatic animals and plants are being greatly impacted by global warming. i. Some bodies of water are starting to get too warm for fish and plants to sustain life there. 1. According to Deanna Coon, more than 20 percent of the Earth’s freshwater fish have already become extinct, endangered, or threatened due to global warming. b. Warm weather is also causing plants to flower earlier in the season. i. Animals that migrate need to find food earlier, thus leaving a gap between when they find food and actually migrate. c. One specific animal that has been a concern for many scientist and other people is the polar bear. i. Since much of the sea ice has melted due to global