Lucas Shaw (Bloomberg) — YouTube will reduce the quality of videos around the world starting Tuesday, an effort by the world’s most popular video site to ease internet traffic during the coronavirus outbreak.

Over the coming days, viewers will at first see YouTube videos in standard definition, the company said. Users will still be able to watch in high definition if they want, but will have to choose to do so.

YouTube, part of Alphabet Inc.’s Google, is extending a policy it already instituted in Europe, where regulators have asked major streaming services, including Netflix Inc. and Amazon Prime Video, to reduce their bandwidth usage.