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In an event billed as tennis’s latest “Battle of the Sexes,” Aryna Sabalenka, the No. 1-ranked women’s tennis player in the world, will take on Nick Kyrgios, who’s currently ranked No. 673 on the men’s tour, on Dec. 28, 2025, in Dubai.

When leaders of “the Quad” last met in September 2024, host and then-President Joe Biden declared the partnership between the United States, India, Australia and Japan to be “more strategically aligned than ever before.”

Sudan’s brutal civil war has dragged on for more than 2½ years, displacing millions and killing in excess of 150,000 people – making it among the most deadly conflicts in the world today.

From beginning to end, 2025 was a year of devastation for scientists in the United States.

As the world’s population ages, the number of people living with dementias such as Alzheimer’s disease increases. Given the lack of curative treatments and the limited effectiveness of available medications, interest in new therapeutic approaches is growing. Among them are cannabinoids from the cannabis plant.

This roundup of The Conversation’s climate coverage was first published in our award-winning weekly climate action newsletter, Imagine.

In the latest escalation of tensions between the US and Venezuela, on December 17 US President Donald Trump ordered a “complete blockade” of sanctioned oil tankers going into and out of Venezuela. His Venezuelan counterpart, Nicolás Maduro, called the move “warmongering threats”, and accused the US of trying to steal…

It’s that time of year again, and retailers are pulling out all the stops to get us spending – from Black Friday to new year’s sales.

If you wander through Glasgow Green, you’ll encounter the Doulton fountain, a gaudy terracotta tribute to empire that features “native” and colonial figures in national dress holding out the produce of their lands to the imperial centre. Like thousands of imperial monuments across Britain, the Doulton Fountain is neither widely…

“We cannot negotiate with the melting point of ice.” That’s the message from more than 50 leading scientists who study the Earth’s frozen regions, published in the latest annual State of the Cryosphere report.

Christmas is often considered a time of connection, warmth and belonging. That’s the script, anyway. But for many people, the reality feels different; isolating, emotionally weighted and filled with comparisons that sting.