World Reef Awareness Day 2023: Date, History, Facts about The Great Barrier Reef

World Reef Awareness Day is on June 1 and aims to raise awareness about the vulnerable biological system of our oceans’ coral reefs among various business communities and the general public. This day brings together individuals from a variety of disciplines, including environmentalists and social activists, to come up with various ideas and techniques to prevent the deterioration of reef ecosystems.

The background of World Reef Awareness Day

The earliest corals appeared approximately 500 million years ago, if not earlier. Researchers believe that they evolved from simple, solitary organisms over time and in response to constant environmental changes into the gorgeous coral reefs that exist today.

Approximately 440 million years ago, during an ice age, sea temperatures dropped exponentially and a significant number of corals began disappearing from the ocean. This is referred to as the Ordovician-Silurian Extinctions. In the Devonian period, roughly 410 million years ago, corals began to reappear. At the end of this period, stony corals began to proliferate, which were an uncommon type of reef at the time. Then, approximately 350 million years ago, corals vanished owing to fluctuating sea levels.

After 100 million years, corals reappeared, only to be wiped out by the Permian-Triassic Extinction 250 million years ago, in which more than 90 percent of marine creatures perished. This tragic extinction event was caused by a decrease in oxygen and an increase in carbon dioxide in the ocean.

After disappearing and reappearing for several million years, coral reefs eventually reappeared 46 million years ago and disappeared for the final time during the middle Eocene. They eventually made a comeback 20 million years later in the form of the Great Barrier Reef in Australia, which was discovered by the British explorer Captain James Cook in 1770.

Some of the most beneficial reefs have diminished in recent years due to coral bleaching, increasing ocean temperatures, and hazardous pollution. Additionally, the use of harmful sunscreens and an increase in tourism are regarded as hazards to the health of coral reefs.

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5 facts about the Great Barrier Reef that will astound you

It is home to over 1,500 species of marine life.

Annually, more than one million divers visit the Great Barrier Reef.

The Great Barrier Reef is one of the world’s seven natural marvels.

The Great Barrier Reef is frequented by uncommon marine species such as the humpback whale, the loggerhead turtle, and the green sea turtle.

Volunteers can learn about reef diving while interacting with reef specialists.

WORLD REEF AWARENESS DAY DATES

Year	Date	Day
2023	June 1	Thursday
2024	June 1	Saturday
2025	June 1	Sunday
2026	June 1	Monday
2027	June 1	Tuesday