1. United States Environmental Issues

3. Review of Environmental Issues Causes and Effects

4. Environmental Problems: Cause and Effects Climate Change –Causes: Added Carbon Dioxide Human activities –Effects Coastal flooding Increase sea levels Temperatures will rise and become extreme Broaden the range of some diseases, pest, insects Destroy forest

5. Ozone Depletion: –Causes Chemicals containing chlorine and bromine CFC’s (chlorofluorocarbons) –Effects Depletion of the Ozone Environmental Problems: Cause and Effects

6. Acid Rain –Causes Nitrogen and sulfur emitted through the burning of fossil fuels –Effects Acids leach nutrients from trees Kills off fish Destroys lakes and forest Environmental Problems: Cause and Effects

7. Water pollution –Causes Acid Rain DDT Oil Spills –Effects 15% world does not have access to safe drinking water Global weather patterns shift Environmental Problems: Cause and Effects

8. Deforestation –Causes Clearing of trees Poor farming practices Cattle grazing –Effects Soil erosion Reduced vegetation Reduction in arable land Up the pace of climate change Environmental Problems: Cause and Effects

9. Biodiversity –Causes Deforestation Water pollution Acid rain Ozone depletion Climate change –Effects Loss of new medicines, food, technologies Loss of ecosystems Environmental Problems: Cause and Effects

10. Contributors to pollution –Power Plants –Coal Factories –Oil Industry Older outdated factories emit more pollutants into the air

11. Fertilizers –Along the Mississippi Wash into Gulf of Mexico Promote the growth of algae –Florida Used in sugarcane fields Killed plants and wildlife in the everglades Environmental Problems: Cause and Effects

12. Dams –Columbia and Snake rivers Block the path of migrating salmon –Population growth Fight between Arizona and California for water –Ecosystems are destroyed

14. Alternative energy resources for –Solar Power –Wind Power Eco-Friendly: –Cars –Factories –Products Joining the International Community in the protection of the earth Conservation Environmental Problems: Solutions

15. Exxon Valdez Accident in Alaska Place: Prince William Sound, Alaska Oil Tanker ran aground Although actions were taken to stop the spread the oil spread hundreds of miles along the Alaskan coast line “The clean-up is not proceeding well” Exxon Shipping president, Frank Larossi

16. In 2004, a federal judge in Alaska ordered Exxon to pay $4.5bn in damages for the Valdez oil spill, the largest in US history. It emerged that the Exxon Valdez had dumped 11 million US gallons of crude oil and contaminated about 1,300 miles of coastline. 250,000 seabirds, nearly 3,000 sea otters, 300 harbor seals, 250 bald eagles and up to 22 killer whales died as a result of the spill. Exxon Valdez Accident in Alaska

17. Exxon captain, Joseph Hazelwood, admitted drinking vodka before boarding the vessel, but was subsequently acquitted of operating a ship while intoxicated. The Exxon Valdez was repaired and renamed the Sea River Mediterranean and is working in the Atlantic although it is banned from returning to Alaska. Exxon Valdez Accident in Alaska