Great Barrier Reef

Annotations:

• Great Barrier Reef

1. Climate Change

   Annotations:

   • caused by
   1. Warmer waters
      1. Global Warming
         1. Greenhouses Gases
            1. Heat
            2. Burning fossil fuels
         2. Universty of Queenland scientist Selina Ward
            1. Economical damage
               1. Annual $6 billion reef tourism industry
               2. 63000 jobs
            2. Ecological damage
               1. No wave barriers
                  1. Islands will be swamped
      2. Coral Bleaching
         1. Corals being too warm
            1. dies at a faster rate
   2. Main threat to world's reefs
2. Acidifying oceans
   1. weaken coral structures
   2. erode coral structures