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ENVIRONMENT

Danish waste company forced to import rubbish from abroad

The high-tech Amager Bakke waste-to-energy plant is running out of rubbish supplies from the local region and will have to start importing from outside Denmark. 

Refshaleøen oversigt, Amager Bakke, Copenhill.
Refshaleøen oversigt, Amager Bakke, Copenhill. Photo: Mathias Eis/Ritzau Scanpix

When ARC’s incinerator, Amager Bakke, opened in March 2017, it was one of the most modern green energy plants Denmark had ever seen.

The high-tech waste plant is designed to destroy huge amounts of trash from Copenhagen and convert it into energy which is used to heat thousands of homes in the region. It is one of two plants which play a major role in Copenhagen’s ambitions of meeting zero carbon requirements by 2025.

But now, ironically, as municipalities have become very efficient in waste sorting and recycling, the plant is quickly running out of its most important raw material: rubbish.

This has impacted the plant’s finances, so now the five municipalities behind ARC have agreed on a plan that will both improve the economy and provide heat for the capital’s homes: waste from surrounding countries will be shipped to Denmark and burned at the Amager Bakke plant.

READ ALSO: EU countries need better recycling, Copenhagen agency finds

Until now, the owner municipalities had blocked ARC’s ability to source waste through imports, but the agreement provides a waiver to allow imports to be increased until the end of 2025 to keep the furnaces running. 

In a press release, the five owner municipalities state that the increased imports will also increase CO2 emissions – but: “The alternative is that the municipalities will have to recycle less waste, that ARC’s finances will be worse – and even that there may be a need to import gas, which comes from Russia, among other places.”

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ENVIRONMENT

Danish underwater gardeners plant eelgrass to save ‘dead’ Vejle Fjord

Danish botanists are trying a novel method to save the struggling marine habitat in Vejle Fjord.

Danish underwater gardeners plant eelgrass to save 'dead' Vejle Fjord

Under a white tent on the shores of a polluted Danish fjord, volunteers and researchers prepare slender green shoots of eelgrass to be planted on the seabed to help restore the site’s damaged ecosystem.

Denmark generally has a strong track record on environmental issues, but only five of its 109 coastal zones are considered healthy, according to the Danish Environmental Agency.

Like other coastal areas in Denmark, the Vejle Fjord is suffering from eutrophication — a process in which nutrients, often from land run-off, accumulate in a body of water and lead to increased growth of microorganisms and algae.

The algae cover water surfaces, blocking light and cutting off oxygen, killing plants and wildlife.

An underwater surveillance camera installed in the Vejle fjord by the municipality last year detected just one fish in 70 hours.

– ‘Completely collapsed’ –

In Denmark, a major pork producer, more than 60 percent of the country’s land is used for agriculture — one of the highest concentrations in the world — sparking frequent warnings in recent years about the risk of run-off.

A 2022 report by the University of Southern Denmark (USD) concluded the 22-kilometre (14-mile) Vejle Fjord was in “poor environmental condition” because of high levels of nitrogen run-off from fertiliser use on farms.

And when the mercury rises, so does the problem.

“We had a very warm summer in 2023, and that resulted in a huge oxygen depletion,” a biologist who works for Vejle municipality, Mads Fjeldsoe Christensen, told AFP.

“That was quite severe. We witnessed a lot of dead fish.”

He noted that excess nutrients had been emitted into the fjord for “the last 30, maybe 40 years.”

“For a long time, the fjord has been able to recover. But for the last maybe three, four years, we have witnessed a fjord that has completely collapsed.”

Scientists and the municipality decided in 2018 to reintroduce the slender green eelgrass in the busy inlet in the hopes of restoring its once lush seabed, and the wildlife that thrived among them.

In Vejle, some 50 volunteers turned out on a recent weekend to help the scientists.

Braving gloomy, blustery weather, they crowded around tables with buckets full of eelgrass shoots that scientists had picked from zones where it is thriving.

The volunteers rolled the individual shoots around biodegradable nails, which divers then took and transplanted into the seabed.

“Eelgrass is where all the fish grow up, so they’re like kindergarten for fish life,” Fjeldsoe Christensen said.

“If you do not have eelgrass, there’s simply no space for the fish population to grow up.”

– Vejle fjord ‘funeral’ –

Six hectares of seabed and more than 100,000 eelgrass shoots have been planted on the seabed since the transplants began in 2020.

In some places, divers have observed a return of aquatic life, such as crabs and fish.

“We do see effects of the nature restoration,” said SDU biologist Timi Banke, who is taking part in the project.

In April, Greenpeace organised an open-air “funeral” for the Vejle fjord to draw attention to the dire state of Danish coastal waters.

“It is in bad condition and that’s why we’re doing something, but it’s not dead,” Banke told AFP, hailing the efforts undertaken by environmentalists and locals.

On World Oceans Day on June 8th, the Danish think-tank Ocean Institute organised eelgrass transplant operations at 32 sites across the country.

“By planting eelgrass, we are putting the emphasis on restoring nature, but that doesn’t mean we should forget that we also have to reduce the emission of nutrients in Danish waters under pressure,” the think tank’s director Liselotte Hohwy Stokholm wrote on the organisation’s website.

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