Alex Honnold plans to scale Taipei 101 live on Netflix.

Rock climber Alex Honnold will attempt an unroped climb of Taipei 101 in a Netflix special called Skyscraper Live set to air Friday at 8 p.m. ET, and the broadcast has prompted public debate about the ethics of televising high-risk stunts.

Alex Honnold is scheduled to climb Taipei 101, a 508-metre skyscraper, without ropes or a harness in a live Netflix special called Skyscraper Live. The event is set to air Friday at 8 p.m. ET and will be available to millions of viewers. The planned broadcast has generated discussion about the ethics of showing life-risking activities as entertainment. Netflix says it has engaged risk-management professionals and will use a 10-second delay during the live feed. Key points: - Alex Honnold will attempt an unroped climb of Taipei 101 in a Netflix special titled Skyscraper Live. - The building is 508 metres tall and the program is scheduled for Friday at 8 p.m. ET. - Netflix is working with a risk-management firm and plans a 10-second broadcast delay, according to sources close to the production. - Critics and commentators have raised ethical concerns that removing safety equipment makes danger part of the appeal, while Honnold has said his chance of injury is "close to zero." - Honnold is known for his 2017 free-solo ascent of El Capitan, and the idea for a building climb was discussed by him and friends more than a decade ago. Summary: The planned live climb has drawn both support for Honnold's skill and concern about the ethics of broadcasting high-risk stunts. The next public step is the scheduled live broadcast on Netflix; further developments related to the event were not reported.