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Big Tech companies are rapidly expanding the use of guarantees to back debt for AI datacentres and chips, issuing up to $300bn in commitments in under a year while recording little of that exposure on their balance sheets. The off-balance-sheet structure of these guarantees is drawing scrutiny over hidden financial risk in the AI buildout.

The American Lung Association has published a breakdown explaining how to tell whether shortness of breath stems from anxiety or an underlying lung health issue. The guidance outlines key differences in symptoms and urges people to seek medical evaluation when breathing difficulties persist, worsen, or come with warning signs such as chest pain, helping readers decide when to seek care.

The New Jersey Department of Health has issued executive directives aimed at ensuring residents maintain access to influenza, COVID-19, RSV, and routine childhood vaccines. The directives instruct health providers and local agencies to continue offering immunizations regardless of shifting federal guidance. Officials frame the move as protecting seasonal vaccination efforts and childhood immunisation schedules, and the story is drawing attention in regional health coverage.

Classification society ABS has issued an Approval in Principle to Hanwha Ocean for a floating data center design. The approval signals that the concept meets class requirements at the design stage, marking an early but significant step toward developing offshore infrastructure that hosts computing capacity at sea. Floating data centers are attracting attention as a way to expand digital capacity while using seawater for cooling.

New survey data indicates that Latinos rank the environment as a more important issue than non-Latinos do. The findings, reported by McClatchy outlets including the San Luis Obispo Tribune and azcentral, suggest environmental concerns carry particular weight in Latino communities, a point of growing relevance for politicians and campaigns courting these voters ahead of upcoming elections.

Writer Tim Smedley examines whether China is positioned to take over global climate leadership. The piece argues that with the United States stepping back from climate commitments, China's dominance in clean energy manufacturing, electric vehicles and solar power could make it the world's de facto climate leader, raising questions about geopolitics and the future of international climate cooperation.

The journal Biological Diversity has announced a new special issue inviting researchers to submit papers on decoding biodiversity through evolutionary mechanisms. The call seeks work explaining how evolutionary processes shape and maintain the variety of life. The announcement will interest biologists, ecologists and evolutionary scientists looking to publish in the collection.

A call for papers has been issued for a special journal issue, inviting researchers to submit manuscripts on a focused topic. The announcement was carried by EurekAlert!, a science news release service used widely by universities and journals. Details on the journal, the theme of the issue, and submission deadlines have not been provided, and there is no indication yet of the response from the research community.

Apple has released iOS 27.0.1, a maintenance update for iPhone that addresses reported problems with Face ID and touchscreen responsiveness. The patch follows recent user complaints about these features, and owners are advised to install it via Settings to restore normal performance. No new features are included; it is strictly a bug-fix release.

Donald Trump is attempting to rebrand artificial intelligence as 'super intelligence' at the same time as polling shows him losing ground on the issue with voters. The move has drawn attention because it ties his administration's AI messaging to sliding public approval, with critics questioning whether a terminology shift will do anything to address voter concerns about the technology.

The Bank of Canada is increasing its use of two-week repo operations in an effort to reduce upward pressure on the Canadian Overnight Repo Rate Average, the benchmark rate known as Corra. Rising pressure in the repo market has raised concerns about funding conditions, and the central bank is stepping in with additional liquidity support to keep short-term rates aligned with its target.