Fri, Dec 19, 2025 page1

• Hundreds sue Japan over Tokyo’s climate inaction

  • AFP, TOKYO
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  Hundreds of people across Japan yesterday sued the central government, seeking damages for “unconstitutional” inaction on climate change in the country’s first such litigation.

  The landmark lawsuit criticizes Japan’s “grossly inadequate” fight against the climate crisis, saying it jeopardizes the health and livelihoods of the approximately 450 plaintiffs.

  “We just submitted our complaint and evidence to the court and our lawsuit has been officially accepted,” lead lawyer Akihiro Shima said.

  

  Plaintiffs and their lawyers march along the sidewalk in front of the Tokyo District Court yesterday, after filing a lawsuit against the government seeking damages for its failure to take action on climate change.

  Photo: AFP

  Plaintiff Kiichi Akiyama, a construction worker, said that relentless heat forced his team to work slower, causing “huge losses” to his business.

  There have also been cases where “people collapse out in the field, or have dropped dead after they return home,” the 57-year-old said.

  Five climate-related lawsuits have previously been filed with Japanese courts, including against coal-fired power plants, Kyoto University assistant professor Masako Ichihara said.

  However, Ichihara — as well as lawyers working on the suit — say yesterday’s suit is the first compensation claim against the state over climate change.

  “The defendant’s climate change measures are grossly inadequate, and as a result, the plaintiffs’ rights to a peaceful life and to the enjoyment of a stable climate are being violated,” the complaint summary says.

  This year, Japan sweltered through its hottest summer since records began in 1898, and the plaintiffs argue that such heat waves cause economic losses, ruin crops and put many at risk of crippling heatstroke.

  Akiyama, who frequently works outside in the searing heat, said it now takes his team triple the estimated time to finish their projects.

  “I can barely dig with a shovel for 10 minutes without sitting down to rest,” he added. “We wouldn’t be in this terrible situation if the government had taken more initiative in implementing policies.”

  Similar legal moves are under way globally, including in South Korea where young environmental activists won the first such case in Asia.

  Last year, a South Korean court ruled that much of the country’s climate goals were unconstitutional. In Germany, climate targets were also ruled insufficient and unconstitutional in 2021.

  The suit in Japan is seeking ￥1,000 (US$6.42)in damages per plaintiff.

  Shima said plaintiffs wanted to focus on “the issue of the country’s responsibility” rather than on money.

  Japan’s case is bolder than previous lawsuits in the country in that it seeks to directly hold the state accountable for climate inaction, Ichihara said.

  Chances of a legal win are slim, but “if the purpose ... is to raise public awareness, then it may succeed” because of its “very relatable” messaging, she said.

  Another plaintiff, who only gave her surname, Saito, was spurred into action by concerns over her six-year-old son.

  She said that record temperatures were robbing him of opportunities to play outdoors, with public pools sometimes declared off-limits due to heatstroke alerts.

  “Not just in pools, but playing outside generally is becoming difficult in summer. The playground equipment is burning hot and that scares me,” Saito said.

  Japanese Chief Cabinet Secretary Minoru Kihara declined to comment directly on the lawsuit, but said the country had approved “ambitious” emissions reduction targets that were compatible with the Paris Agreement’s 1.5°C goal.

  Japan’s nationally determined contributions aspire to cut its greenhouse gas emissions by 60 percent by 2035 and 73 percent by 2040 compared with 2013 levels.

  However, yesterday’s lawsuit criticizes the latest targets, saying they “fall significantly short” of the global reduction aims outlined by the UN Intergovernmental Panel on Climate Change.

  They are also not legally binding, the complaint summary says.

  “This legislative omission is unmistakably unconstitutional,” it adds.
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