Mariah Carey during the grand opening of Sugar Factory American Brasserie, Sept. 6, 2017. Photo: Mat Hayward/Getty Images for Sugar Factory American Brasserie

Mariah Carey's "All I Want for Christmas Is You," originally released in 1994, topped the Billboard Hot 100 for the first time this week.

Why it matters: The 25-year wait from the song's release to its place at No. 1 is the longest in Billboard history. It also adds to Carey's personal chart records — the song is now her 19th No. 1 (the most among solo artists; and overall trailing only The Beatles' 20) and her 80th week at No. 1 (Rihanna is closest at 60). It's also the first holiday No. 1 since The Chipmunks' "The Chipmunk Song" in 1959.

Go deeper: Generation Z knows how to own the pop charts

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2 mins ago - Technology

Nationalism and authoritarianism threaten the internet's universality

Illustration: Aïda Amer/Axios

Governments around the world, prompted by nationalism, authoritarianism and other forces, are threatening the notion of a single, universal computer network — long the defining characteristic of the internet.

The big picture: Most countries want the internet and the economic and cultural benefits that come with it. Increasingly, though, they want to add their own rules — the internet with an asterisk, if you will. The question is just how many local rules you can make before the network's universality disappears.

The Democratic fight to shape Biden's climate policy

Illustration: Sarah Grillo/Axios

Left-wing climate activists don't want Joe Biden getting advice from people with credentials they don't like — and they're increasingly going public with their campaign.

Why it matters: Nobody is confusing Biden with President Trump, and his climate platform goes much further than anything contemplated in the Obama years.

34 mins ago - Sports

Factions form with college football season in the balance

Illustration: Aïda Amer/Axios

With college football on the brink, Monday saw an outpouring of support for playing a fall season from numerous parties, including President Trump, Ohio State coach Ryan Day and Michigan coach Jim Harbaugh.

Yes, but: Monday also saw the Mountain West Conference become the second FBS league to postpone fall sports, and the Big Ten and Pac-12 are expected to make the same decision as early as this morning.