Introduction to Using Issues Issue 1 - Coastal Population Growth: A... Issue 2 - SONAR and Whales Issue 3 - Methane Hydrates—Energy... Issue 4 - Toxic Chemicals in Seawater Issue 5 - The Lasting Influences of... Issue 6 - Beaches or Bedrooms? The... Issue 7 - Illegal Immigration: Ballast... Issue 8 - Lifestyles of the Large and...