Vapor-compression refrigeration replaced, such as sulfur dioxide. Haloalkanes are also an order(s) of magnitude more expensive than petroleum derived flammable alkanes of similar or better cooling performance. Unfortunately, chlorine- and fluorine-bearing refrigerants reach the upper atmosphere when they escape. In the stratosphere, CFCs break up due to UV radiation, releasing their chlorine free radicals. These chlorine free radicals act as catalysts in the breakdown of ozone through chain reactions. One CFC molecule can cause thousands of ozone molecules to break down. This causes severe damage to the ozone layer that shields the Earth's surface from the Sun's strong UV radiation, and has
The Mask of the Sun simple animations. "Softline" in 1983 noted the "innovative" animation and "excellent, detailed" graphics, and called the puzzles "very good". The magazine concluding that ""The Mask of the Sun" is a very good graphics adventure for the average to good adventurer". "Ahoy!" in 1984 liked "Mask of the Sun"s graphics and vocabulary but noted long load times and low level of difficulty, stating that even novice adventurers would be able to finish the game "within a couple of weeks". "Antic" called "Mask of the Sun"s graphics "absolutely superb" and the gameplay as "excellent". A sequel to The Mask of the Sun