Jump to . . . 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 . . .