![Permits were supposed to make climbing Yosemite's Half Dome safer. They made things worse | Science | AAAS Permits were supposed to make climbing Yosemite's Half Dome safer. They made things worse | Science | AAAS](https://www.science.org/do/10.1126/science.aax8976/abs/half%20dome_16x9.jpg)
Permits were supposed to make climbing Yosemite's Half Dome safer. They made things worse | Science | AAAS
![DANGER ON THE DOME / Overcrowding: Hikers swarming Yosemite's Half Dome create a bottleneck at the treacherously steep granite climb to the summit DANGER ON THE DOME / Overcrowding: Hikers swarming Yosemite's Half Dome create a bottleneck at the treacherously steep granite climb to the summit](https://s.hdnux.com/photos/12/21/31/2692694/11/1200x0.jpg)
DANGER ON THE DOME / Overcrowding: Hikers swarming Yosemite's Half Dome create a bottleneck at the treacherously steep granite climb to the summit
![Pictured: Hiker who plunged 500-feet to her death while climbing the famous Half Dome | Daily Mail Online Pictured: Hiker who plunged 500-feet to her death while climbing the famous Half Dome | Daily Mail Online](https://i.dailymail.co.uk/1s/2019/09/06/21/18167600-0-image-a-42_1567800050587.jpg)