Health
Irish Hospital Leads Charge to Cut Nitrous Oxide Waste Amid Climate Concerns

St John’s Hospital in Limerick has become one of the first medical facilities in Ireland to take decisive action against the environmental impact of nitrous oxide emissions by deactivating its central pipeline system for the gas, long used as an anaesthetic. The move is part of a growing effort in the healthcare sector to reduce its carbon footprint and curb avoidable waste.
Nitrous oxide, commonly known as laughing gas, has been used in hospitals for decades to relieve pain and anxiety during procedures. However, studies have shown that large volumes of the gas leak into the atmosphere due to outdated infrastructure, where it can remain for up to 120 years and contribute significantly to global warming.
Dr Hugh O’Callaghan, a consultant anaesthetist at St John’s, explained that while nitrous oxide remains safe and effective for clinical use, its delivery through centralised piping systems leads to “inevitable waste.” Instead, the hospital will now use portable canisters brought directly into operating rooms, a method that reduces gas leakage and emissions.
This initiative aligns with Ireland’s national plan to cut carbon emissions from anaesthetic gases by 50% by 2030. Other hospitals across the country are expected to follow St John’s lead in the coming months, according to the Health Service Executive (HSE).
Similar steps have already been taken in parts of the United Kingdom and the Netherlands. In England, hospitals that replaced central gas systems with mobile units saw a 55% drop in monthly nitrous oxide emissions, according to the NHS. In Manchester, the switch reportedly lowered the local health trust’s overall carbon footprint by up to 5%.
“It’s not about limiting clinical care—it’s about smarter, more sustainable delivery,” said Dr Cliff Shelton, a UK anaesthetist and co-chair of the environmental committee at the Association of Anaesthetists. The group has recommended decommissioning hospital nitrous oxide pipelines across the UK and Ireland by 2027.
Healthcare professionals increasingly acknowledge their sector’s role in climate change. Globally, the health sector accounts for about 4.4% of total emissions, with the European Union responsible for 248 million metric tons of carbon dioxide annually—trailing only the United States and China.
Although nitrous oxide and other anaesthetic gases contribute significantly to this footprint, experts stress that the bulk of emissions stem from the healthcare supply chain, including pharmaceuticals and medical equipment.
Still, efforts like those at St John’s Hospital are seen as important first steps. “When we looked into this, we found we were buying 100 times more nitrous oxide than we were actually using,” said Dr Shelton. “It’s a moral imperative to address that kind of waste.”
Health
Europe Faces Growing Challenges in Meeting Medical Care Needs, EU Report Shows

A new report has highlighted stark disparities in healthcare access across Europe, revealing that a growing number of citizens face unmet medical needs due to systemic issues such as high costs and long waiting times.
According to the latest data from Eurostat and the Health at a Glance: Europe 2024 report, 3.8 per cent of EU residents aged 16 and over reported unmet medical needs in the past year. However, the percentage climbs significantly when focusing solely on individuals who actively required healthcare services — with some countries reporting unmet needs among over 20 per cent of this group.
The causes are twofold: healthcare system barriers, including long waiting lists and treatment costs, account for 2.4 per cent of all cases, while 1.4 per cent stem from personal reasons such as fear of doctors, lack of time, or lack of knowledge about available care.
Unmet healthcare needs vary widely across the continent. Estonia tops the list within the EU, with 15.5 per cent of people reporting unmet needs, followed closely by Greece and Albania, each over 13 per cent. Even wealthier Nordic countries show surprising figures — Denmark (12.2 per cent), Finland, and Norway (over 7.5 per cent) — despite high healthcare spending. Conversely, countries such as Germany (0.5 per cent), Austria (1.3 per cent), and the Netherlands (1.4 per cent) report the lowest levels, pointing to more efficient and accessible healthcare systems.
Cost is a dominant barrier in nations like Greece and Albania, where over 9 per cent of citizens cited unaffordable care. In contrast, long waiting times are the primary issue in countries like Estonia (12 per cent) and Finland (7.5 per cent).
Income inequality also plays a major role. On average, 3.8 per cent of low-income individuals across the EU report unmet needs due to healthcare system issues — more than triple the 1.2 per cent reported by higher-income groups. In Greece, that gap is particularly wide, with 23 per cent of low-income respondents affected.
Healthcare experts say these disparities reflect more than just economic factors. Dr. Tit Albreht, President of the European Public Health Association (EUPHA), noted, “Unmet health needs arise from different reasons, including how well healthcare governance integrates services to meet population needs.”
Industry leaders, such as Tina Taube of the European Federation of Pharmaceutical Industries and Associations (EFPIA), stressed the importance of timely access to diagnosis and treatment. “Unmet needs are context-specific,” she said. “It’s not just about product availability, but also healthcare system readiness.”
Andy Powrie-Smith of EFPIA added that patients in some European countries wait up to seven times longer than others for the same treatments due to regulatory delays and varying national infrastructures.
The findings underscore the need for a more coordinated, equitable healthcare strategy across the continent, especially as Europe faces the challenges of an ageing population and increasingly complex medical technologies.
Health
Chinese Nationals Charged in U.S. with Smuggling Toxic Fungus Labeled a Potential Agroterrorism Threat

U.S. federal authorities have charged two Chinese nationals in connection with smuggling a dangerous agricultural fungus into the country, a move investigators describe as posing significant national security risks.
Yunqing Jian, 33, and Zunyong Liu, 34, are accused of conspiracy, smuggling, making false statements, and visa fraud after allegedly attempting to bring Fusarium graminearum — a toxic fungus capable of devastating crops and harming humans and livestock — into the United States. The case was detailed in a court filing by the Federal Bureau of Investigation (FBI) in Detroit.
The fungus, which targets essential food staples like wheat, maize, barley, and rice, is described in a scientific journal cited by the FBI as a “potential agroterrorism weapon.” Experts warn that its spread could inflict serious damage on global food security and agricultural economies.
U.S. Attorney Jerome Gorgon Jr. emphasized the seriousness of the case, stating: “The alleged actions of these Chinese nationals, including a loyal member of the Chinese Communist Party, are of the gravest national security concerns.”
Jian made her first appearance in a Detroit federal court on Tuesday and remains in custody awaiting a bond hearing scheduled for Thursday. A court-appointed attorney for her initial appearance declined to comment.
According to the FBI’s complaint, the investigation began in July 2024 when Liu was stopped at Detroit Metropolitan Airport. During a routine screening, customs officials discovered suspicious red plant material in his backpack. Liu initially claimed not to know what it was but later admitted he planned to use it for research purposes at the University of Michigan, where Jian is currently employed and where Liu previously worked.
Authorities say Liu’s mobile phone contained an article titled “Plant-Pathogen Warfare under Changing Climate Conditions,” raising further concerns about the intended use of the samples. The FBI believes the two individuals were coordinating to introduce the pathogen into a U.S. research setting without proper clearance or oversight.
Liu was denied entry to the U.S. and deported in July. Charges against both individuals were filed this week, as prosecutors continue to investigate the scope of the alleged conspiracy.
The case underscores growing concerns in the U.S. over biosecurity and potential misuse of scientific research amid rising geopolitical tensions.
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