Climbing

From SFWiki

This skill represents the character's ability to scale surfaces, such as walls and cliffs. All characters may attempt to climb, but characters with ranks in this skill are more adept at doing so.

Higher ranks in this skill mean that the character is better able to climb surfaces. Further, the character's chance of mishap and fall is decreased.

This is a poor choice of skill for starting characters. Climbing is not necessary until later in the game.