Sarah Kaplan is a climate reporter covering humanity's response to a warming world.

Two-way time-of-arrival (TW-ToA) is a ranging protocol that provides distance between two devices in absence of synchronization, but it suffers from range estimation errors when clock frequency offset ...

Veteran police dispatcher who was a calming voice for Chicagoans at their worst moments goes off the radio Debra White’s OEMC dispatch colleagues describe her as the “mama” of the unit ...