• Locals and environmentalists have opposed a plan to expand a coal-fired power plan in northern Bali, Indonesia.
• They are worried that the expansion will exacerbate the existing impact of the plant on the environment and locals’ health and livelihoods.
•  A particular concern focuses on the survival of dolphins and endemic species living in close proximity to the plant, with Greenpeace saying the dolphins have particularly been affected since the plant came on line in 2015.
• Another major worry is air pollution, with many locals complaining of respiratory ailments as a result of the fumes and coal dust emitted from the plant.

JAKARTA — Dolphins haven’t had it easy in Bali, a resort island in Indonesia that’s massively popular with tourists.

They’re often held captive in chlorinated pools for traveling circuses; a report alleges that dolphins at one such outfit had their teeth filed down or removed altogether to prevent bite injuries to swimmers.

But the biggest challenge they face is one that threatens their habitat and that could potentially drive them away from the island’s waters. That challenge comes in the form of a massive coal-fired power plant in the sleepy fishing village of Celukan Bawang, on Bali’s north coast. The plant lies west of the popular Lovina Beach, a prime spot for dolphin-watching boat tours.

But the tour operators could soon be out of business, if the grim scenario painted by a Greenpeace report plays out. Since the plant began operating in 2015, the environmental watchdog says, it has dumped coal waste residue on the land and in the sea, wreaking havoc on the local ecosystem. The steady traffic of coal barges supplying the plant have also damaged coral reefs and driven away fish.

The impact has been far-reaching, the report says, with local fishermen forced to sail further out to sea because of declining catches in their traditional fishing areas closer to shore.

In hot water

Didit Haryo, a climate and energy campaigner at Greenpeace Indonesia, says dolphins are among the animals most affected by the power plant.

The plant is just 20 kilometers (12 miles) from Lovina Beach, and as such lies easily within the typical dolphin roaming range of around 40 kilometers.

“In the past, locals in Celukan Bawang said there were still many dolphins passing by,” Didit told Mongabay. “But they say they rarely see dolphins nowadays.”

There are several ways in which the plant is potentially impacting the local dolphin population, says Putu Liza Kusuma Mustika, a marine mammal expert at the University of Queensland in Australia.

Read moreOn an Island in the Sun, Coal Power is King Over Abundant Solar