Japan's net greenhouse gas emissions fell 1.9% to a record low of 994 million tonnes in fiscal 2024, with the decline linked to lower energy use and a cleaner electricity mix.
A review of more than 100 studies says nicotine vaping is likely to cause lung and oral cancers, adding weight to long-running warnings about the health risks of e-cigarettes.
Spain has allowed a 25-year-old woman from Barcelona to undergo euthanasia after a 20-month legal fight that survived multiple challenges and divided the country.
Argentina has made its withdrawal from the World Health Organization official, following a year-long notice period and a government argument that it will pursue health cooperation through other channels.
A federal judge in Massachusetts has blocked the rollout of major vaccine-policy changes pushed by Robert F. Kennedy Jr., saying the government likely skipped the required process.
Arctic sea ice reached nearly 14.22 million square kilometres, placing the winter maximum among the smallest in four decades of satellite monitoring and underscoring the region's rapid warming.
Conservationists have released 158 captive-bred juvenile tortoises on Floreana, marking a major step in restoring a species driven extinct on the island in the 1840s.
Guinea-Bissau suspended a Trump administration-backed hepatitis B vaccine study on newborns pending an ethics review after questions about whether the trial was appropriate.
Reports on a JAMA-published American Cancer Society study said colorectal cancer had moved from fifth to first among cancer causes of death for people under 50 in the United States.
The Met Office says 2025 topped the old national temperature record and adds to a run of recent years that rank among the warmest in modern measurements.
NOAA says the Arctic recorded its hottest year since measurements began, with temperatures from October 2024 to September 2025 averaging 1.60 C above the 1991-2020 baseline.
The Catalan government moved to speed up contracts, cull controls and aid after an African swine fever outbreak spread through wild boar near the 12-kilometre containment zone.