JAKARTA — Indonesia’s oldest and largest environmental group, Walhi, has formally intervened in an environmental lawsuit filed by the government against a major logging company, arguing the government’s case fails to account for the full extent of ecological damage allegedly caused by the company’s operations. Walhi filed the intervention on May 20, 2026, in the Medan District Court, where the environment ministry is seeking 3.89 trillion rupiah ($214 million) in damages and environmental restoration measures against pulpwood plantation operator PT Toba Pulp Lestari (TPL). The environmental group is not arguing that the ministry’s damages claim is too small. Instead, it says the lawsuit overlooks key ecological impacts, such as critical orangutan and tiger habitats, that should also be addressed through court-ordered restoration. In January 2026, the environment ministry filed lawsuits against six companies over alleged damage to watersheds in North Sumatra province, which the government says contributed to the floods and landslides that struck the region in late November 2025 following cyclone-driven storms across Sumatra. The government also announced the revocation of the permits for TPL and 27 other companies in January 2026. TPL later disclosed to investors that it had received a forestry ministry decree dated Jan. 26 formally revoking its forest-use license, and that it had subsequently ceased forest-use activities within its concession. The floods and landslides struck three provinces on the island of Sumatra, including North Sumatra, and claimed the lives of more than 1,200 people. In its lawsuit against TPL, the environment ministry identified 1,261.5 hectares…This article was originally published on Mongabay

JAKARTA — A group of Indonesian citizens affected by the late-2025 Sumatra floods and landslides have filed a lawsuit with a court in Jakarta in an effort to hold the Indonesian government accountable for what they describe as an “ecological disaster.” The disasters claimed more than 1,200 lives and damaged more than 600,000 buildings across three provinces, resulting in more than 100 trillion rupiah ($5.6 billion) in estimated economic losses. The plaintiffs argue the damage from Cyclone Senyar was amplified by decades of policy failures, including deforestation, extractive concessions, degraded watersheds, weak zoning, poor environmental enforcement and the absence of an effective early-warning system. Through the lawsuit, the plaintiffs are effectively asking the court to determine whether the catastrophe transcended a natural calamity and could be categorized as a foreseeable failure of governance linked to environmental degradation and state inaction. The lawsuit combines elements of Indonesia’s citizen lawsuit mechanism with a challenge to alleged unlawful government administrative inaction under a 2014 law on public services. Alfi Syukri, a lawyer with the West Sumatra chapter of the Legal Aid Institute (LBH), who is representing the plaintiffs, noted that Indonesia’s meteorological agency, the BMKG, had repeatedly warned authorities about the potential for extreme weather linked to Cyclone Senyar before the disaster intensified. “So in Aceh, North Sumatra and West Sumatra [provinces], the head of BMKG Region 1 had already issued warnings eight days before [the Nov. 25 landfall], then repeated them four days before, and again two days before,” BMKG chief Teuku…This article was originally published on Mongabay