>I think that it would be more accurate to say "working to maintain a narrow range of temperature and humidity inside the *cluster*."

This is probably right, particularly in the overwintering situation - but as our esteemed colleague pointed out:

>Giving credit where credit is due, the bees are maintaining two different sets of humidity/temp ranges - one for raising brood, and one for evaporating nectar down to honey, often within inches of each other.

In his talk with Dr. Ellis and Amy Vu, Derek quips that the summer condition is akin to the challenge of maintaining appropriate psychrometric conditions for a nursery immediately beside a sugar refinery.

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