Yin is characterized as slow, soft, yielding, diffuse, cold, wet, and passive; and is associated with water, earth, the moon, femininity, and nighttime.
Yang, by contrast, is fast, hard, solid, focused, hot, dry, and active; and is associated with fire, sky, the sun, masculinity and daytime.
In short, he wouldn't participate in the expeditions themselves. And then he would have the best chance of survival (although it still might not be very high).
For example, grouping "cold" and "intuitive" together, and "hot" and "logical" in another group, is a very obvious fail.
Where do we end up when we save the world?