The document discusses the Great Barrier Reef, which is the largest reef system in the world located off Australia's northeast coast, consisting of thousands of individual reefs. It notes that ocean acidification from climate change poses a threat, as some scientists predict that by the end of the century, ocean pH could drop below 7.95, causing coral exoskeletons to begin dissolving.

1. Report By: Jessica Colquhoun.

2. • The Great Barrier Reef is the largest reef system in the world and widely considered
one of the seven wonders of the natural world.
• It is made of Thousands of reefs.

3. • The Great Barrier Reef is in Australia’s north-eastern coast.

4. • Ocean acidification is the evil twin of climate change.
• Some scientists predict that, as a worst-case scenario, sea water will have a pH of
7.8 by the end of the century.
• An ocean pH of below 7.95 will cause coral exoskeletons to begin dissolving in the
ocean .