Coral Bleaching and Its Impact

The video discusses a major global coral bleaching event, highlighting its causes, primarily ocean warming due to climate change. Coral reefs, vital for biodiversity and the economy, are under threat, affecting marine life and human industries. While bleaching doesn't always mean death, recovery requires cooler temperatures and advanced restoration techniques. NOAA's efforts in monitoring and restoration are crucial for preserving these ecosystems.

What is the primary cause of the current global coral bleaching event?

• Tourism

• Ocean warming

• Overfishing

• Pollution

Which organization is responsible for monitoring coral reefs?

• WWF

• UNESCO

• NOAA

• NASA

What is the main stressor causing large-scale coral bleaching?

• Ocean acidification

• Rising sea surface temperatures

• Increased salinity

• Decreased sunlight

How long ago did the problem of coral bleaching start to become significant?

• 30 years ago

• 20 years ago

• 10 years ago

• 40 years ago

What percentage of storm energy do coral reefs attenuate during hurricanes?

• 50%

• 70%

• 90%

• 100%

What fraction of marine life depends on coral reefs at some point in their life?

• 1 in 3

• 1 in 4

• 1 in 2

• 1 in 5

What is the estimated annual contribution of coral reefs to the US economy?

• 2 billion dollars

• 3 billion dollars

• 1 billion dollars

• 4 billion dollars

What is a bleached coral's condition?

• Infected

• Completely healthy

• Alive but stressed

• Dead

What is necessary for corals to recover from bleaching?

• Higher acidity

• Cooler temperatures

• More sunlight

• Increased salinity

What is crucial for ensuring the survival of certain coral species?

• Increased fishing

• Advanced restoration techniques

• More tourism

• Higher pollution levels