Sharing hotness with the world at large.
Ground Fire: A forest fire that stays on or near the ground, without leaping up tree trunks and getting into the tree crowns.
Ground Fire: When the ground burns. Caused by using nuclear devices as fire starters (also known as "overkill").
Ground Fire: Freeze-dried fire in powder form. Handy but expensive. To use, just rip open foil pouch, add hot water and wait five minutes. Comes in yellow, orange, red-orange, red, and three levels of hotness.
From: Fire In Your Hand About ultralight backpacking stoves. (print)
PDF: Fire In Your Hand (The same, but now paper-free.)