Coral reefs belong to the ecosystems that are the most
sensitive to climate change, and thus serve as a perfect study
example of the changes taking place on our planet. Scientists are
working hard to protect and regenerate them using a wide variety of
innovative approaches.
It is estimated that about 500 million people and 25% of all
marine species depend on coral reef, either directly or indirectly.
The largest coral reef, about 2300 km long, which was put on the
UNESCO World Heritage List, is the Great Barrier Reef, located off
the east Australian coast. Visible even from space, the Great
Barrier Reef is home to hundreds of coral, fish and mollusk
species, several species of sea turtles, and even whales and
dolphins.