This sounds cool:
MOUNT ALBION – University of Colorado biologists began installing an alarm system atop this craggy summit Friday, near the Continental Divide west of Boulder.
Like the alarm systems in your car or home, this one is designed to detect intruders.
But in this case, the invaders are tundra plants moving up from lower elevations in response to global warming. The alarm system is a cluster of mountaintop vegetation plots that will be monitored periodically for decades to come.