1. Great Barrier Reef (Australia)
The Great Barrier Reef is a dazzling underwater landscape, stretching over 2,300 kilometers along Australia’s coast. However, rising ocean temperatures and frequent coral bleaching events have left vast stretches of the reef pale and lifeless. Scientists warn that without urgent action, this natural wonder could become unrecognizable within decades. Not only is marine biodiversity at stake, but so are the livelihoods of communities relying on tourism and fishing. Every year, the reef’s decline serves as a stark symbol of climate change’s relentless march.
