Noose of Ice is the 23rd produced and the 25th broadcast, episode of the British television series Captain Scarlet and the Mysterons.
An underwater Arctic mine extracting a rare metal to be used in Earth's return to Mars is terrorised when its heating elements are sabotaged and the surrounding water threatens to freeze and crush the tower...
- Noose of Ice was written by Peter Curran and David Williams. It was only due to a captioning error that Tony Barwick was credited for writing the script. Furthermore, ITC's official story information brochure, published in 1967, named the writers of the aforementioned episode as Peter Curran and Derek Williams.
- The six reel-to-reel computer banks on the walls of Hotspot Control previously appeared in four Thunderbirds episodes (Atlantic Inferno, Path of Destruction, Lord Parker's 'Oliday, and Ricochet). They also featured in the feature films Thunderbirds Are Go (as part of the Glenn Field Assembly Control set) and Thunderbird 6 (in Skyship One's gravity compensator room).
- The brass lampshade hanging from the ceiling in General Rebus' office first appeared above Jeff Tracy's desk in the Tracy Lounge in the last six episodes of Thunderbirds, Thunderbirds Are Go, and Thunderbird 6.
- The set which forms the interior of the Eskimo Booster Station is moderately adapted from part of the set of the above-mentioned gravity compensator room.