It's getting harder to find Rudolph playing reindeer games — and researchers say climate change may be to blame.
The big picture: The declining reindeer population isn't just worrying Santa. They're a crucial part of the life force for communities in Arctic areas, and they promote ecological diversity by feeding on some plants and influencing how others grow.
Waymo is facing mounting questions about why its robotaxis stopped operating and blocked traffic during a chaotic weekend power outage in San Francisco that knocked out traffic signals and cellular networks.
Why it matters: Malfunctioning traffic lights should be a routine problem for self-driving cars, but the incident exposed the potential safety risks when robotaxis lose contact with their remote human overlords.
In a natural disaster, like an earthquake, flood or fire, hundreds of frozen robotaxis could block emergency responders, putting lives at risk.