Why does extreme heat sometimes feel completely different depending on whether the air is humid… or the ground is dry and cracking beneath your feet?

In this episode of The Climate Translation, Dr. Mac explores what scientists call compound heat–drought events and explains how heat, moisture, vegetation, and large-scale climate patterns can begin reinforcing one another in dangerous ways. He breaks down how the Earth’s surface naturally cools itself through evapotranspiration, and what happens when drought shuts that cooling system down.

Along the way, he examines why a hotter atmosphere becomes “thirstier,” how drying soils can intensify heat waves, and why researchers are increasingly concerned about overlapping climate stresses rather than isolated events. The episode also connects these i ...