Dangerous weather conditions apparently played a role in the death of a male hiker who fell from Half Dome Saturday afternoon.

Each year there are thousands of search-and-rescue incidents logged across the National Park System. They typically involve missing hikers, visitors who get injured in falls, boating accidents, or climbing accidents. Far and away the bulk of the incidents quickly are resolved, usually in less than 24 hours.

Koi herpes virus is what’s killing the carp at Lake Mohave. KHV can’t spread to people or other fish, thank goodness, but this new disease is very bad news for carp.

Two acclaimed climbers who were roped together while climbing on Mount McKinley in Denali National Park have fallen several thousand feet to their deaths.