Cutting Down Trees Can Help Save Climate in Forest Industry Math

Sweden’s forest industry has prepared a defence against critics who say trees should be left in the forest to bind carbon and help fight climate change.

At the heart of the conflict is the European Union’s need to regulate sustainable activities across the bloc, where forest-based carbon sinks are on average declining, in net terms. That has prompted concerns that forestry accumulates a so-called carbon debt because trees take several decades to grow back.

In densely forested Sweden, the industry is keen to show trees are, overall, sequestering more carbon dioxide than is released. The companies, who make their profit from pulp, packaging and timber, commissioned a study that shows a bigger climate benefit from cutting trees than reducing or halting harvests.

More Woods

Swedish forest grows as more trees are planted than cut down.

The math in the report published on Tuesday centers on displacement effects: fossils can be left underground if wood is used to replace such materials, resulting in smaller carbon dioxide emissions than keeping forests intact but using materials such as plastic instead.

The industry argues that a carbon-debt calculation is nonsensical in a forest that is managed in a sustainable manner, such as in Sweden, where trees are replanted, increasing both standing volume and wood supply. That’s in contrast to clearing rainforests for palm-oil plantations, resulting in deforestation and the loss of biomass, they say.

“If you leave a tree for long enough, it will die and release the carbon into the atmosphere again. Over time, it’s a zero-sum game,” said Henrik Sjolund, chief executive officer of Holmen AB, a Swedish timber producer. “What’s best for the climate is to harvest as much as possible without reducing the carbon sink in the standing forest, and to replace fossil materials such as concrete, steel, plastics and fossil fuels with bio products.”

For climate activists, carbon debt is “the biggest problem” the industry poses from a climate-change perspective, said Elin Gotmark, spokeswoman for Swedish non-governmental organization Protect the Forest.

“It takes time for trees to grow back, and the soil to accumulate carbon again,” she said in an emailed response to questions before the industry’s study was published. Forestry “decreases the total amount of carbon stored in the land ecosystems,” she added.

The industry’s strife with the EU began in February, when the bloc’s climate chief, Frans Timmermans, said the state of Sweden’s forests was worsening. Sweden needs to adapt its forestry to rising temperatures and increase biodiversity to boost resilience, he said.

Burning Question

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By Jesper Starn

NEWS  STORY
DATE: 14th JUNE  2021

AUTHOR: BLOOMBERG GREEN

SUBJECT: CUTTING DOWN TREES – CLIMATE IMPACT

DETAIL: SWEDISH FOREST PRODUCTION SEQUESTERING CARBON

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