1. Global Warming Lauren Pollock SCI 210 Dr. Sandy November 18, 2003 "An increasing body of observations gives a collective picture of a warming world and other changes in the climate system." Intergovernmental Panel on Climate Change (IPCC), 2001

2. What is global warming??  An increase in the average temperature of the earth’s surface, especially a sustained increase sufficient to cause climatic change. - American Heritage Dic. of the English Language, 4 th Ed. - American Heritage Dic. of the English Language, 4 th Ed.

3. Evidence that Global Warming Exists  Increase in emissions of carbon dioxide into the atmosphere -cars, power plants, etc. -cars, power plants, etc.  Global average temperatures increasing- 2002 was the second warmest year on record.

4. Effects on U.S. Climate  There are several predicted climate pattern changes -warmer temperatures -warmer temperatures -drought and wildfire -drought and wildfire -more intense rainstorms -more intense rainstorms -changing weather patterns -changing weather patterns  Predictions are made based on warning signs today NRDC.com

5. Global Effects  Some of the global effects tend to have a domino effect -for example, rising temperatures causes warming waters, which leads to thinning and melting ice. -for example, rising temperatures causes warming waters, which leads to thinning and melting ice. Increased melting season in Antarctica, which affects the Adelie penguins who live there. Time.com -The melting of glaciers contributes to another problem, the rise of sea level. the rise of sea level. NRDC.com An ice shelf melting away over several months.

6. More Global Effects  Health -heat waves -heat waves -increase in spread of disease via -increase in spread of disease via mosquitoes mosquitoes  Ecosystem -possible extinction of species -possible extinction of species 279 species of plants and animals are already reacting to global warming, including these Pacific Salmon, who experienced a sharp decline in population in 1997 and 1998. Time.com

7. Consequences of Global Warming  Orange-indicates direct manifestations of a widespread and long-term trend toward warmer global temperatures, such as heat waves, ocean warming, glacier melting, and Arctic and Anarctic warming.  Red- indicates foreshadowed likely impacts with continued warming, such as spreading disease, earlier spring arrival, population changes, etc. Climatehotmap.org

8. What can you do?  This is a really cool site about common ways to reduce emissions of CO 2 and other harmful gases!  What can you do?? What can you do?? What can you do??