Vietnam battles plastic blight in idyllic Ha Long Bay and its famed limestone karsts

1 year ago 59

HA LONG, Vietnam – Squinting in the bright light of a hot summer morning, Ms Vu Thi Thinh perches on the edge of her small wooden boat and plucks a polystyrene block from the calm waters of Vietnam’s Ha Long Bay.

It’s not yet 9am, but a mound of styrofoam buoys, plastic bottles and beer cans sit behind her.

They are the most visible sign of the human impacts that have degraded the Unesco World Heritage Site, famed for its brilliant turquoise waters dotted with towering rainforest-topped limestone islands.

“I feel very tired because I collect trash on the bay all day without much rest,” said Ms Thinh, 50, who has been working for close to a decade as a trash picker.

“I have to make five to seven trips on the boat every day to collect it all.”

Since the beginning of March, 10,000 cu m of rubbish – enough to fill four Olympic swimming pools – have been collected from the water, according to the Ha Long Bay management board.

The trash problem has been particularly acute over the past two months, as a scheme to replace styrofoam buoys at fish farms with more sustainable alternatives backfired and fishermen chucked their redundant polystyrene into the sea.

The authorities ordered 20 barges, eight boats and a team of dozens of people to launch a clean-up, state media said.

Mr Do Tien Thanh, a conservationist at the Ha Long Bay Management Department, said the buoys were a short-term issue but admitted: “Ha Long Bay… is under pressure”.

Human waste

More than 7 million visitors came to visit the spectacular limestone karsts of Ha Long Bay, on Vietnam’s north-eastern coast, in 2022.

The authorities hope that number will jump to 8.5 million in 2023.

But the site’s popularity, and the subsequent rapid growth of Ha Long City – which is now home to a cable car, amusement park, luxury hotels and thousands of new homes – have severely damaged its ecosystem.

Conservationists estimate there were originally around 234 types of coral in the bay. Now, the number is around half.

There have...

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