The number of American kids watching online videos every day has more than doubled, and they're glued to them for nearly an hour a day — twice as long as they were four years ago, the AP reports.

Why it matters: "It really is the air they breathe," said Michael Robb, senior director of research for the nonprofit Common Sense Media, which issued the report.

  • The group tracks young people's tech habits and offers guidance for parents.

The survey of American youth included the responses of 1,677 young people, ages 8 to 18.

  • It found that 56% of 8- to 12-year-olds and 69% of 13- to 18-year-olds watch online videos every day.
  • In 2015, the last time the survey was conducted, those figures were 24% and 34%, respectively.
  • The margin of error was +/- 3 points.

Overall screen time didn't change much in those four years:

  • The average tween (8 to 12) spent 4 hours, 44 minutes with entertainment media on digital devices each day.
  • For teens, it was 7 hours, 22 minutes.
  • That didn't include time using devices for homework, reading books or listening to music.

What to watch: YouTube said that, in the coming months, it will share details on ways the company is rethinking its approach to kids and families.

Go deeper: New fears rise about kids online

Go deeper

Deadly Hurricane Zeta slams U.S. Gulf Coast

A satellite image of Hurricane Zeta. Photo: National Hurricane Center/NOAA

Hurricane Zeta has killed at least one person after a 55-year-old man was "electrocuted by a downed power line" in Louisiana as the storm caused widespread power outages Wednesday night, per AP.

What's happening: Zeta made landfall south of New Orleans as a Category 2 hurricane earlier Wednesday before weakening to Category 1. But it was still "battering southeastern Louisiana and southern Mississippi with life-threatening storm surge, high winds, and heavy rain" late Wednesday, per the National Hurricane Center.

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Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Politics: Biden ahead in Wisconsin, Michigan as cases surge in the Midwest.
  2. Health: Fauci says U.S. may not return to normal until 2022 — Trump's testing czar: Surge "is real" and not just caused by more tests Some coronavirus survivors have "autoantibodies."
  3. Business: Consumer confidence sinking Testing is a windfall.
  4. World: Europe faces "stronger and deadlier" wave France imposes lockdown Germany to close bars and restaurants for a month.
  5. Sports: Boston Marathon delayed MLB to investigate Dodgers player who joined celebration after positive COVID test.
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Fauci says U.S. may not return to normal until 2022

Director of the National Institute of Allergy and Infectious Diseases, Anthony Fauci, testifies during a September Senate hearing on COVID-19 in Washington, D.C. Photo: Graeme Jennings/Pool/AFP via Getty Images

NIAID director Anthony Fauci told the Journal of the American Medical Association on Wednesday he doesn't expect a COVID-19 vaccine to be ready until January 2021 or later.

What he's saying: Fauci said during the interview that the U.S. was in a "bad position" after failing to keep case numbers down post-summer. "We should have been way down in baseline and daily cases and we’re not," he said.