SCIENCE AND ENVIRONMENT

POLLUTION Only seven countries ‘meet WHO dirty air guidelines’ Nearly every country on Earth has dirtier air than doctors recommend breathing, a report has found. Only seven countries met the World Health Organization’s guidelines for tiny toxic particles known as PM2.5 last year, according to analysis from the Swiss air quality technology company IQAir. Australia, New Zealand and Estonia were among the countries with a yearly average of no more than 5µg of PM2.5 per cubic metre. The most polluted countries include Chad, Bangladesh and Pakistan. MEDICAL RESEARCH Marriage triples men’s risk of obesity – but not women’s Marriage triples the risk of obesity for men, but does not affect women, according to research. Global obesity rates have more than doubled since 1990, with more than 2.5 billion adults and…

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Guardian Weekly (Digital) - 1 Issue, 21 March 2025

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