Prince Charles gives speech at a meeting for for International Year of the Reef 2018

Coral reefs are vital to marine ecosystems and global balance, yet they face severe threats from human activities and environmental changes. Over the past three decades, 50% of tropical coral reefs have been lost due to global warming, coastal development, overfishing, pollution, and plastic waste. Recent widespread bleaching events further threaten their survival. The interval between bleaching events has decreased, reducing the time for reefs to recover. If current trends continue, the future of coral reefs is at risk, with potentially catastrophic consequences for the planet.

Why are coral reefs considered crucial for the planet's biosphere?

• They are the largest ecosystems on Earth.

• They provide critical balance and resilience to the biosphere.

• They are the primary source of oxygen for the planet.

• They are the most ancient ecosystems on Earth.

What are some of the main challenges coral reefs face today?

• Lack of sunlight and cold water temperatures.

• Increased tourism and recreational activities.

• Unprecedented coastal development and overfishing.

• Excessive algae growth due to nutrient pollution.

How does plastic pollution affect coral reefs?

• It leads to excessive algae growth.

• It causes a rapid increase in lethal coral diseases.

• It increases water temperature, causing bleaching.

• It blocks sunlight, preventing photosynthesis.

What percentage of the world's tropical coral reefs have been lost in the past three decades?

• 90%

• 75%

• 50%

• 25%

What is the current interval between coral bleaching events, as reported?

• Every 12 years

• Every 6 years

• Every 30 years

• Every 2 years