Due to a heat stress earlier this March millions of corals in the north of the Great Barrier Reef had died quickly. The situation got worse when nearly 93% of the reefs on the Great Barrier have been hit by Coral bleaching.

It is a natural phenomenon for corals to bleach when they experience temperatures that are above normal, as per the Guardian the situation worsens if there are few clouds, and a high level of UV radiation blasts the clouds.

The Australian Northern Great Barrier Reef is around 2,300 kilometers, and it is considered the largest coral reef system in the world. Declared by UNESCO as a World Heritage Site the reef is facing a crisis as per Latin American Herald Tribune.

It appears that more than half the reefs have been bleached, and it has continued to cause further damage in the northern section. The southern half has reported to be less affected.

The corals that have survived are in very poor condition, the Great Barrier Reef has faced its worst ever bleaching, and the weakened corals are eaten by snails leaving behind little or nothing.

Reports have stated that in the central and southern zone they are in better condition and recovering their colors. Corals usually obtain nutrients from Algae but due to the bleaching they are unable to do so.

There are around 400 types of corals in the Great Barrier Reef and nearly 1,500 species of fish together with 4,000 varieties of mollusks. The warming of the sea weather has led to the damage.

Corals take a very long time to grow they do not spring up like other plants, but they have a lifespan for 4,000 years and certain varieties of corals are said to live even longer.

There have been 100 people underwater examining the coral reef closely, and they have collected data from 150 reefs.

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