Climate campaigners are taking Norway’s government back to court to oppose its plans to open the Arctic for oil drilling despite a public commitment to tackle the environmental crisis.

Greenpeace Nordic and Norway’s Nature and Youth organisation will appeal on Tuesday against the government’s decision to allow oil exploration in parts of the Arctic Ocean on the grounds that it violates people’s rights to a safe and healthy environment.

The green groups are expected to argue that the decision would breach a constitutional law, known as section 112, that calls on the government to safeguard a healthy environment for existing and future generations. They also claim the plans would violate the Paris climate agreement.

Norway has pledged to help tackle rising global carbon emissions by divesting fossil fuel investments from its trillion-dollar sovereign wealth fund, but the government has continued to support new oil projects.

Total carbon emissions from the fossil fuel-rich country are forecast to climb by 16% this year compared with the year before, after oil companies drilled 130 oil and gas wells in 2019.

The campaigners claim Norway’s total exported greenhouse gas emissions are 10 times bigger than the domestic emissions from its production.

Q&A How is climate change affecting the Arctic? Show Hide The world may have warmed by around 1C (1.8F) over the past century but the Arctic far outstrips this global average and is warming at around twice the rate of the rest of the world. In places, the rate of warming has been astonishing. Novembers in the Alaskan town of Utqiaġvik, formerly Barrow, are now 5.5C warmer than they were in 1979. In the summer of 2019, an Arctic heatwave saw parts of Greenland reach temperatures 40C hotter than normal. The Arctic is dominated by sea ice, unlike the Antarctic which is essentially a huge land-based ice sheet. As the ocean and atmosphere warm, sea ice is shrinking in extent, at around 13% a decade since 1979, according to Nasa. The bright white surface of ice, known as albedo, is giving way to the dark ocean, meaning that sunlight is being absorbed rather than reflected, amplifying the warming effect. These "rapid" and "unprecedented" changes are transforming the Arctic and threatening traditional ways of life, according to US government scientists in a 2019 report card. The sea ice is younger, thinner, more fragile and less extensive, making hunting on the ice harder and more perilous. The marine ecosystem is shifting as warmer water forces fish species to retreat to more northern waters. What is a major challenge to communities in the Arctic, is a boon to the shipping industry, which can navigate the area more easily. This task will get even simpler once the Arctic is ice free in summertimes, forecast as soon as 2040s.

Frode Pleym, the head of Greenpeace Norway, said: “The Norwegian government can no longer ignore the dangerous impact its exported oil is having on the climate. Climate change knows no borders. Oil is oil, no matter where it is burned, and the government needs to cancel all drilling for new oil in the Arctic. Not acting now violates the Paris agreement and Norway’s own constitution. That is why we are back in court.”

The green groups first took the government to court in Oslo in 2017 after years of lobbying against oil exploration in the Arctic. The co-plaintiffs will have the backing of Friends of the Earth Norway and the Norwegian Grandparents Climate Campaign.

The appeal comes weeks after the UN special rapporteur on human rights and the environment, David Boyd, delivered a stinging rebuke of the Norwegian government’s oil expansion in a report calling for an end to the country’s search for new oil.

“Norway should stop exploring for additional oil and gas reserves, stop expanding fossil fuel infrastructure, and harness Norwegian wealth and ingenuity to plan a just transition to a fossil fuel-free economy,” he said.

“Norway, as one of the world’s wealthiest nations and one of the world’s leading producers of oil and gas, must accept substantial responsibility for leading efforts in mitigation, adaptation and addressing loss and damage.”

Gaute Eiterjord, the head of Nature and Youth in Norway, said it was deeply concerning to see Norway’s government “bury its head in the sand”.

“It is the government’s obligation to safeguard a safe and healthy environment. The young generation, in Norway and all over the world, is worried about the prospect of an unsafe future,” he said.