The Great Barrier Reef
By: Josie Carsten
Effects of Human Activity
Human activities are having a big effect on the Great Barrier Reef in a negative way. Coral reef bleaching is caused by the combination effect of increased temperatures, higher UV radiation, sedimentation, reduced lighting levels and salinity changes. Although it is not the only cause of coral reef bleaching, global warming is considered the primary effect because coral reefs can only survive within a very strict temperature. The slightest bit of temperature change can disrupt the delicate balance of the coral reef ecosystem.
Further Threats Toward the Great Barrier Reef
A tourist resort could further threaten the Great Barrier Reef. Annual bleaching on the Great Barrier Reef is expected by 2030, if today’s pollution continues. Also, carbon dioxide increase is likely to further limit the ability of the Great Barrier Reef to recover from bleaching.